subject:(Gyroscopes)

Rutgers University

1. Choi, Gobong. Design of piezoelectric gyro-sensor using lanthanum gallium silicate (La3Ga5SiO14) and temperature behavior of langasite.

Degree: PhD, Civil and Environmental Engineering, 2016, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/49160/

► Lanthanum Gallium Silicate (La3Ga5SiO14, Langasite, LGS) and its isomorphs are gaining in popularity due to their superior piezoelectric material properties. These materials have similar crystal… (more)

▼ Lanthanum Gallium Silicate (La3Ga5SiO14, Langasite, LGS) and its isomorphs are gaining in popularity due to their superior piezoelectric material properties. These materials have similar crystal properties as the quartz crystal, which is widely used in BAW applications such as resonators and piezoelectric vibratory gyroscopes. The langasite and langatate have better stability at high temperatures that have no phase transition up to the melting point at 1475°C and 1450°C, respectively. Additionally, quartz, langasite, and langatate crystals are trigonal class crystals that belonging to the same point group 32, for which well-known methods of trapping energy of piezoelectric resonator can be easily and accurately applied. Quartz, langasite and langatate crystals are used for studying and designing piezoelectric vibratory gyroscopes. The three-dimensional finite element models are developed to simulate the characteristic of the vibratory gyroscopes. The piezoelectric double-ended tuning fork gyroscope is used to verify and validate the finite element analysis. The geometric and gyroscopic sensitivity of the finite element models of the quartz doubled-ended tuning fork gyroscope showed the excellent agreement with the experimental data. The sensitivity of the quartz, langasite and langatate gyroscope are found to be 0.191 mV/(deg./s), 0.469 mV/(deg./s) and 0.784 mV/(deg./s), respectively. The results show that langasite and langatate crystal are more effective than quartz crystal for high precision piezoelectric gyroscopes. A length-extension vibratory gyroscope is our newly designed gyroscope, which utilizes a length extension mode as a driving mode and a flexure mode as a sensing mode to detect the Coriolis force generated by the rotation of the system. The singly rotated quartz, langasite and langatate crystals are used and their calculated optimum cut angles are ϕ=0̊, θ=-9̊ , ϕ=0̊ , θ =24̊ and ϕ=0̊ , θ =24̊, respectively. The sizes of the gyroscopes vary due to the material properties and length of the driving arms. The langasite and langatate gyroscopes are nearly the same size and are smaller than the quartz gyroscope. The gyro-sensitivity rotations about the z-axis of quartz, langasite and langatate gyroscopes were 2.78e-4 V/(deg/s), -1.60e-2 V/(deg/s) and -1.6e-2 V/(deg/s), respectively. The results show that the newly designed length-extension gyroscope can be used as a gyro-sensor, and that langasite and langatate gyroscopes provide the stronger sensitivity to angular velocity than the quartz gyroscope. The length extension gyroscope is also able to detect the angular velocities about the other two axes(x- and y-axes). The temperature behaviors of the langasite and langatate crystals have not been established unlike the quartz crystal. The three-dimensional Langrangian formulations with second kinds of Piola-kirchoff tensor that uses the coordinates of a material point in the reference point as independent variables are used to calculate the frequency-temperature behaviors of the langasite. Normally, the… Advisors/Committee Members: yong, yook kong (chair), Balaguru, Perumalsamy N (internal member), Najm, Husam (internal member), Denda, Mitsunori (outside member).

Subjects/Keywords: Gyroscopes

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APA (6^th Edition):

Choi, G. (2016). Design of piezoelectric gyro-sensor using lanthanum gallium silicate (La3Ga5SiO14) and temperature behavior of langasite. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/49160/

Chicago Manual of Style (16^th Edition):

Choi, Gobong. “Design of piezoelectric gyro-sensor using lanthanum gallium silicate (La3Ga5SiO14) and temperature behavior of langasite.” 2016. Doctoral Dissertation, Rutgers University. Accessed March 05, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/49160/.

MLA Handbook (7^th Edition):

Choi, Gobong. “Design of piezoelectric gyro-sensor using lanthanum gallium silicate (La3Ga5SiO14) and temperature behavior of langasite.” 2016. Web. 05 Mar 2021.

Vancouver:

Choi G. Design of piezoelectric gyro-sensor using lanthanum gallium silicate (La3Ga5SiO14) and temperature behavior of langasite. [Internet] [Doctoral dissertation]. Rutgers University; 2016. [cited 2021 Mar 05]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/49160/.

Council of Science Editors:

Choi G. Design of piezoelectric gyro-sensor using lanthanum gallium silicate (La3Ga5SiO14) and temperature behavior of langasite. [Doctoral Dissertation]. Rutgers University; 2016. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/49160/

University of Johannesburg

2. Du Plessis, Jan Abraham Francois. An alternative gyroscope calibration methodology.

Degree: 2013, University of Johannesburg

URL: http://hdl.handle.net/10210/8684

►

D.Ing. (Electrical & Electronic Engineering Science)

The objective of the research performed in this thesis is to address the calibration process of Fiber-Optic Gyroscopes (FOGs)… (more)

▼

D.Ing. (Electrical & Electronic Engineering Science)

The objective of the research performed in this thesis is to address the calibration process of Fiber-Optic Gyroscopes (FOGs) - a class of gyroscopes that make use of the Sagnac effect to determine rotational information from laser-light traveling in an optical fiber. The calibration process has traditionally been a time-consuming and therefore an expensive one due to the various environmental parameters that can influence the sensor under operation. Calibration is not a step that can be neglected as it is the process whereby the residual manufacturing errors in the sensor are characterized. If these measurement errors are not eliminated, the sensors would result in the host vehicle's assumed position rapidly diverging from its true position. Once the errors are characterized, they can be removed from the sensor output to improve the accuracy of the complete navigation system. The class of the sensor is determined by the amount of residual errors and the smaller the residual errors, the more expensive the sensor. The specific focus of the study is to determine whether it is possible to reduce the calibration cost of the Fiber-Optic Gyroscopes through the use of innovative calibration strategies. The use of neural networks are investigated as an alternative to the traditional calibration strategies which consists of the estimation of the constant error parameters through stochastic estimation strategies such as Kalman filters. The whole calibration problem is recast into the well-defined Systems Identification (SID) domain where the whole calibration problem is considered in terms of the systems identification design steps. The main contributions presented in this study are that the traditional calibration strategy is reviewed by casting the calibration problem into the Systems Identification domain; that a unified FOG error model is developed that combines a number of seemingly contradictory error models available in the technical literature; that computational intelligence techniques are used to perform gyro calibration; that a novel, non-linear gyro calibration strategy is developed; and that the sensors are calibrated under the simultaneous dynamic excitation of the full range of multi-dimensional environmental conditions. In the process of the development of this new calibration strategy the need for a problemspecific Criterion of Fit was observed. Such a Criterion of Fit was therefore developed and it acted as the core criterium whereby the accuracy of the new calibration strategy was assessed. One of the most important results obtained from the research presented in this thesis is that the new strategy significantly outperforms the traditional strategies and that, with the availability of high-performance embedded computational platforms, it has potential to be used within an operational environment as the gyro compensation strategy of choice.

Subjects/Keywords: Gyroscopes - Calibration; Fiber-optic gyroscopes - Calibration

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APA (6^th Edition):

Du Plessis, J. A. F. (2013). An alternative gyroscope calibration methodology. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/8684

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Du Plessis, Jan Abraham Francois. “An alternative gyroscope calibration methodology.” 2013. Thesis, University of Johannesburg. Accessed March 05, 2021. http://hdl.handle.net/10210/8684.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Du Plessis, Jan Abraham Francois. “An alternative gyroscope calibration methodology.” 2013. Web. 05 Mar 2021.

Vancouver:

Du Plessis JAF. An alternative gyroscope calibration methodology. [Internet] [Thesis]. University of Johannesburg; 2013. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10210/8684.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Du Plessis JAF. An alternative gyroscope calibration methodology. [Thesis]. University of Johannesburg; 2013. Available from: http://hdl.handle.net/10210/8684

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Georgia Tech

3. Liu, Chang-Shun. Advanced single-chip temperature stabilization system for silicon MEMS resonators and gyroscopes.

Degree: PhD, Electrical and Computer Engineering, 2019, Georgia Tech

URL: http://hdl.handle.net/1853/62688

► The main objective of this research is to develop temperature and frequency stabilization techniques for silicon MEMS oven-controlled crystal oscillators (MEMS OCXO) with high-frequency stability.… (more)

Subjects/Keywords: MEMS; Temperature stabilization; Ovenization; Gyroscopes

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APA (6^th Edition):

Liu, C. (2019). Advanced single-chip temperature stabilization system for silicon MEMS resonators and gyroscopes. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/62688

Chicago Manual of Style (16^th Edition):

Liu, Chang-Shun. “Advanced single-chip temperature stabilization system for silicon MEMS resonators and gyroscopes.” 2019. Doctoral Dissertation, Georgia Tech. Accessed March 05, 2021. http://hdl.handle.net/1853/62688.

MLA Handbook (7^th Edition):

Liu, Chang-Shun. “Advanced single-chip temperature stabilization system for silicon MEMS resonators and gyroscopes.” 2019. Web. 05 Mar 2021.

Vancouver:

Liu C. Advanced single-chip temperature stabilization system for silicon MEMS resonators and gyroscopes. [Internet] [Doctoral dissertation]. Georgia Tech; 2019. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1853/62688.

Council of Science Editors:

Liu C. Advanced single-chip temperature stabilization system for silicon MEMS resonators and gyroscopes. [Doctoral Dissertation]. Georgia Tech; 2019. Available from: http://hdl.handle.net/1853/62688

Texas A&M University

4. Lang, Georgette Marie. Synthesis of Gyroscope like Complexes via Alkene Metathesis: The Effect of Ligand Substitutions on Rotational Barriers.

Degree: PhD, Chemistry, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/169670

► Major objectives of this dissertation involve the synthesis of gyroscope like complexes based upon dibridgehead diphosphine and diarsine cages, complexes with neutral dipolar rotors, and… (more)

▼ Major objectives of this dissertation involve the synthesis of gyroscope like complexes based upon dibridgehead diphosphine and diarsine cages, complexes with neutral dipolar rotors, and reactivity and rotational behavior of such complexes. Ring closing metathesis and hydrogenation reactions of trans-Fe(CO)3(P((CH2)mCH=CH2)3)2 (m = 4-8) yield trans-Fe(CO)3(P((CH2)n)3P) (n = 2m+2). Reactions with NO+ BF4– and [H(OEt2)2]^+ Barf^– (BArf = B(3,5-C6H3(CF3)2)4) give the cations trans-[Fe(CO)2(NO)(P((CH2)n)3P)]+ BF4^– and mer, trans-[Fe(CO)3(H)(P((CH2)n)3P)]+ BArf– (n = 10, 12, 14). The rotational dynamics of these complexes are probed by variable temperature NMR spectroscopy. As opposed to those with larger values of n, the rotators of trans-[Fe(CO)2(NO)(P((CH2)n)3P)]^+ BF4^– (n = 10, 12) and mer, trans-[Fe(CO)3(H)(P((CH2)n)3P)]^+ Barf^– (n = 10), show slow rotation on the NMR timescale at room temperature. VT-NMR data yield ΔH^‡/ΔS^‡ values (kcal/mol and eu) of 8.3/–28.4 and 9.5/–6.5 for Fe(CO)2(NO)^+ rotation (n = 10, 12), and 6.1/–23.5 for Fe(CO)3(H)+ rotation (n = 12). Reaction of arsines As((CH2)mCH=CH2)3 (m = 4-6) with (BDA)Fe(CO)3 (BDA = benzylideneacetone) yield trans-Fe(CO)3(As((CH2)mCH=CH2)3)2. Metathesis and hydrogenation reactions afford trans-Fe(CO)3(As((CH2)n)3As) (n = 10, 12, 14). Previously discussed analogous reactions give trans-[Fe(CO)2(NO)(As((CH2)n)3As)]+ BF4– and mer,trans-[Fe(CO)3(H)(As((CH2)n)3As)]+ BArf–. VT-NMR data give ΔH‡/ΔS‡ values of 7.7/–22.1 and 5.4/–22.7 for Fe(CO)2(NO)^+ and Fe(CO)3(H)^+ rotation (n = 12) which are distinctly lower than those in diphosphine analogs. Reactions of trans-Fe(CO)3(P((CH2)mCH=CH2)3)2 (m = 4-8) with NO^+ BF4^– afford trans-[Fe(CO)2(NO)(P((CH2)mCH=CH2)3)2]^+ BF4^–. Further substitution is effected with Bu4N^+ X^- (X = Cl, Br, I, CN) to give trans-Fe(CO)(NO)(X)(P((CH2)mCH=CH2)3)2. Three synthetic routes to gyroscope-like complexes trans-Fe(CO)(NO)(X)(P((CH2)n)3P) (n/X = 4-8/Cl, Br, I, CN) are described. (1) Reaction of trans-[Fe(CO)2(NO)(P((CH2)14)3P)]+ BF4^– with Bu4N^+ X^- gives trans-Fe(CO)(NO)(X)(P((CH2)14)3P). (2) Treatment of the acyclic complexes trans-Fe(CO)(NO)(X)(P((CH2)mCH=CH2)3)2 with Grubbs' catalyst affords trans Fe(CO)(NO)(X)(P((CH2)mCH=CH(CH2)m)3P). (3) Similar reactions with trans [Fe(CO)2(NO)(P((CH2)mCH=CH2)3)2]^+ BF4^– can give trans-[Fe(CO)2(NO)(P((CH2)n)3P)]+ BF4^–. Consistent with NMR data, crystal structures of trans-Fe(CO)(NO)(X)(P((CH2)14)3P) (X = Cl, Br, CN) indicate that the void space within the diphosphine cages appears sufficient for Fe(CO)(NO)(X) rotation. Advisors/Committee Members: Gladysz, John A (advisor), Darensbourg, Don J (committee member), Zhou, Hongcai (committee member), Seminario, Jorge (committee member).

Subjects/Keywords: molecular gyroscopes; rotational barriers

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APA (6^th Edition):

Lang, G. M. (2016). Synthesis of Gyroscope like Complexes via Alkene Metathesis: The Effect of Ligand Substitutions on Rotational Barriers. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/169670

Chicago Manual of Style (16^th Edition):

Lang, Georgette Marie. “Synthesis of Gyroscope like Complexes via Alkene Metathesis: The Effect of Ligand Substitutions on Rotational Barriers.” 2016. Doctoral Dissertation, Texas A&M University. Accessed March 05, 2021. http://hdl.handle.net/1969.1/169670.

MLA Handbook (7^th Edition):

Lang, Georgette Marie. “Synthesis of Gyroscope like Complexes via Alkene Metathesis: The Effect of Ligand Substitutions on Rotational Barriers.” 2016. Web. 05 Mar 2021.

Vancouver:

Lang GM. Synthesis of Gyroscope like Complexes via Alkene Metathesis: The Effect of Ligand Substitutions on Rotational Barriers. [Internet] [Doctoral dissertation]. Texas A&M University; 2016. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1969.1/169670.

Council of Science Editors:

Lang GM. Synthesis of Gyroscope like Complexes via Alkene Metathesis: The Effect of Ligand Substitutions on Rotational Barriers. [Doctoral Dissertation]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/169670

University of Johannesburg

5. Cronjé, Hendrik Albertus. Gyroscopes as feedback sensors for position control of a flexible robot arm.

Degree: 2014, University of Johannesburg

URL: http://hdl.handle.net/10210/9052

►

M.Tech. (Electrical Engineering)

The challenges faced by modern industrial robots and robots in general are increasing in cornplexity. A modern robot can be defined as… (more)

▼

M.Tech. (Electrical Engineering)

The challenges faced by modern industrial robots and robots in general are increasing in cornplexity. A modern robot can be defined as a technological system. capable of replacing or assisting man in carrying out a variety of physical tasks. Thus the implementation of advanced technology in the field of industrial robotics poses different challenges to those faced by engineers in other fields. The reason for this lies mainly in the fact that robots have to be be able to interact with their environment in some intelligent way. For the robot to be able to accomplish this. it must be able to obtain information about its immediate surroundings. and/or its position in the surroundings. In the case of industrial or other stationary robots. the knowledge about its surroundings are of less importance than its own position and the position of the relevant workpieces in the work space. Traditionally the position of a robot arm is measured using position encoders mounted at the joints of the robot arm. The combination of information obtained from these sensors gives the position of the endpoint of the arm. To ensure that the encoder positions accurately reflect the actual position of the arm. the arms have to be rigid, resulting in a heavy. bulky and costly system. If it were possible to determine the endpoint of a robot arm without using the joints of the arm as reference points, it would be possible to design more flexible robot arms. resulting in less costly and more maneuverable systems. Various solutions were considered for this measurement problem and from these it was decided to investigate the use of inertial measurement technology to determine the endpoint position of a flexible robot arm. To test the use of gyroscopes as feedback sensors in the position control of a flexible robot arm. a small low cost robot arm was developed. The design was based on an articulated robot arm with three degrees of freedom (DOF). The system was designed to be fitted with a flexible arm segment to evaluate the gyroscope-based feedback system. The system was further fitted with traditional position sensors to be used as the benchmark against which the gyroscope-based control system was to be compared. Making use of the traditional position sensors the endpoint of the arm can be accurately placed in a space of :3mm x 4mm x 1mni. When the robot was fitted with the flexible arm segment the gyroscopes were able to measure movement of the flexible ann. which the traditional sensors could not detect. Using the gyroscopes as position feedback. the robot was able to track the potentiometer position within 0.19° under dynamic conditions, but under stationary conditions. the error was 6.50 • Based on the results obtained. it was concluded that the displacement of a robot arm segment can be determined using inertial measurement technology. The low cost sensors used proved the concept. but for reliable operation. higher accuracy sensors would be required aided with information obtained from other sensors. i.e,…

Subjects/Keywords: Robots, Industrial; Gyroscopes; Engineering instruments

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APA (6^th Edition):

Cronjé, H. A. (2014). Gyroscopes as feedback sensors for position control of a flexible robot arm. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/9052

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Cronjé, Hendrik Albertus. “Gyroscopes as feedback sensors for position control of a flexible robot arm.” 2014. Thesis, University of Johannesburg. Accessed March 05, 2021. http://hdl.handle.net/10210/9052.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Cronjé, Hendrik Albertus. “Gyroscopes as feedback sensors for position control of a flexible robot arm.” 2014. Web. 05 Mar 2021.

Vancouver:

Cronjé HA. Gyroscopes as feedback sensors for position control of a flexible robot arm. [Internet] [Thesis]. University of Johannesburg; 2014. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10210/9052.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cronjé HA. Gyroscopes as feedback sensors for position control of a flexible robot arm. [Thesis]. University of Johannesburg; 2014. Available from: http://hdl.handle.net/10210/9052

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Georgia Tech

6. Daniel, Robert John. An analogy between the motion of an electron and a gyroscope.

Degree: MS, Mechanical engineering, 1940, Georgia Tech

URL: http://hdl.handle.net/1853/16928

Subjects/Keywords: Electrons; Gyroscopes

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APA (6^th Edition):

Daniel, R. J. (1940). An analogy between the motion of an electron and a gyroscope. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/16928

Chicago Manual of Style (16^th Edition):

Daniel, Robert John. “An analogy between the motion of an electron and a gyroscope.” 1940. Masters Thesis, Georgia Tech. Accessed March 05, 2021. http://hdl.handle.net/1853/16928.

MLA Handbook (7^th Edition):

Daniel, Robert John. “An analogy between the motion of an electron and a gyroscope.” 1940. Web. 05 Mar 2021.

Vancouver:

Daniel RJ. An analogy between the motion of an electron and a gyroscope. [Internet] [Masters thesis]. Georgia Tech; 1940. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1853/16928.

Council of Science Editors:

Daniel RJ. An analogy between the motion of an electron and a gyroscope. [Masters Thesis]. Georgia Tech; 1940. Available from: http://hdl.handle.net/1853/16928

Georgia Tech

7. Shao, Peng. Microscale hemispherical shell resonating gyroscopes.

Degree: PhD, Mechanical Engineering, 2014, Georgia Tech

URL: http://hdl.handle.net/1853/54266

► MEMS gyroscopes are electromechanical devices that measure rate or angle of rotation. They are one of the fastest growing segments of the microsensor market. Advances… (more)

▼ MEMS gyroscopes are electromechanical devices that measure rate or angle of rotation. They are one of the fastest growing segments of the microsensor market. Advances in microfabrication technologies have enabled the implementation of chip scale monolithic gyroscopes (MEMS gyroscopes) with very small form factor that are lightweight and consume little power. Over the past decade, significant amount of research have been directed towards the development of high performance and very small size MEMS gyroscopes for applications in consumer electronics such as smart phones. In this dissertation, high aspect-ratio hemispherical shell structure with continuously curved surface is utilized as the high Q resonator. Being an axial symmetric structure, the 3D hemispherical shell is able to achieve low frequency (3 ~ 5 kHz) within 2 mm X 2mm die area. Detailed analysis on energy dissipation also shows its potential to achieve ultra-high quality factor with the selection of high Q material and proper design of support structure. This dissertation presents, for the first time, the analysis, design, fabrication and characterization of a micro-hemispherical resonating gyroscope (μHRG) that has the potential to be used as a whole angle micro-gyroscope. A three-dimensional high aspect-ratio poly- and single crystalline silicon (3D HARPSS) process is developed to fabricate free-standing, stem-supported hemispherical shell with self-aligned deep electrodes for driving, sensing and quadrature control of the gyroscope. This monolithic process consists of seven lithography steps and combines 3D micro-structure with curved surfaces with the HARPSS process to create capacitive electrodes with arbitrary gaps around the micro-hemispherical shell resonator (μHSR). Polysilicon is utilized as the structural material due to its isotropic mechanical properties and the potential of achieving high quality factor. The fabrication is demonstrated successfully by prototypes of polysilicon μHRG with diameter of 1.2 mm and thickness of 700 nm. Frequency response and gyro operation are electronically measured using the integrated electrodes. Quality factor of 8,500 is measured with frequency mismatch of 105 Hz. Electronic mode matching and alignment are successfully performed by applying tuning voltages and quadrature nulling voltages. An open loop rate sensitivity scale factor of 4.42 mV/°/s was measured. Design and process optimization of the support structure improved the quality factor to 40,000. Further improvement of quality factor will enable the demonstration of high performance RIG using polysilicon μHRG. Advisors/Committee Members: Ayazi, Farrokh (advisor), Pierron, Olivier (advisor), Brand, Oliver (committee member), Hesketh, Peter J. (committee member), Degertekin, F. Levent (committee member).

Subjects/Keywords: Gyroscopes; Quality factor; Inertial navigation

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APA (6^th Edition):

Shao, P. (2014). Microscale hemispherical shell resonating gyroscopes. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/54266

Chicago Manual of Style (16^th Edition):

Shao, Peng. “Microscale hemispherical shell resonating gyroscopes.” 2014. Doctoral Dissertation, Georgia Tech. Accessed March 05, 2021. http://hdl.handle.net/1853/54266.

MLA Handbook (7^th Edition):

Shao, Peng. “Microscale hemispherical shell resonating gyroscopes.” 2014. Web. 05 Mar 2021.

Vancouver:

Shao P. Microscale hemispherical shell resonating gyroscopes. [Internet] [Doctoral dissertation]. Georgia Tech; 2014. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1853/54266.

Council of Science Editors:

Shao P. Microscale hemispherical shell resonating gyroscopes. [Doctoral Dissertation]. Georgia Tech; 2014. Available from: http://hdl.handle.net/1853/54266

University of British Columbia

8. Robb, Norman Ian. Precession of an orbiting gyroscope in the gravitational field of the earth.

Degree: MS- MSc, Physics, 1966, University of British Columbia

URL: http://hdl.handle.net/2429/37333

► The motion of a gyroscope in a satellite orbiting the earth is considered. The axis of rotation of the gyroscope is assumed to be parallely… (more)

Subjects/Keywords: Gyroscopes; Precession

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APA (6^th Edition):

Robb, N. I. (1966). Precession of an orbiting gyroscope in the gravitational field of the earth. (Masters Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/37333

Chicago Manual of Style (16^th Edition):

Robb, Norman Ian. “Precession of an orbiting gyroscope in the gravitational field of the earth.” 1966. Masters Thesis, University of British Columbia. Accessed March 05, 2021. http://hdl.handle.net/2429/37333.

MLA Handbook (7^th Edition):

Robb, Norman Ian. “Precession of an orbiting gyroscope in the gravitational field of the earth.” 1966. Web. 05 Mar 2021.

Vancouver:

Robb NI. Precession of an orbiting gyroscope in the gravitational field of the earth. [Internet] [Masters thesis]. University of British Columbia; 1966. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/2429/37333.

Council of Science Editors:

Robb NI. Precession of an orbiting gyroscope in the gravitational field of the earth. [Masters Thesis]. University of British Columbia; 1966. Available from: http://hdl.handle.net/2429/37333

The Ohio State University

9. Roth, Donald Lee. An analytical study of some effects of external vibrations and internal imperfections on the performance of gyroscopes .

Degree: PhD, Graduate School, 1967, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486634509113194

Subjects/Keywords: Education; Gyroscopes

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APA (6^th Edition):

Roth, D. L. (1967). An analytical study of some effects of external vibrations and internal imperfections on the performance of gyroscopes . (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1486634509113194

Chicago Manual of Style (16^th Edition):

Roth, Donald Lee. “An analytical study of some effects of external vibrations and internal imperfections on the performance of gyroscopes .” 1967. Doctoral Dissertation, The Ohio State University. Accessed March 05, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486634509113194.

MLA Handbook (7^th Edition):

Roth, Donald Lee. “An analytical study of some effects of external vibrations and internal imperfections on the performance of gyroscopes .” 1967. Web. 05 Mar 2021.

Vancouver:

Roth DL. An analytical study of some effects of external vibrations and internal imperfections on the performance of gyroscopes . [Internet] [Doctoral dissertation]. The Ohio State University; 1967. [cited 2021 Mar 05]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486634509113194.

Council of Science Editors:

Roth DL. An analytical study of some effects of external vibrations and internal imperfections on the performance of gyroscopes . [Doctoral Dissertation]. The Ohio State University; 1967. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486634509113194

The Ohio State University

10. Goodstein, Robert. Motion of a gyro with Cardan suspension of non-negligible mass.

Degree: PhD, Graduate School, 1957, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu14864646278095

Subjects/Keywords: Education; Gyroscopes

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APA (6^th Edition):

Goodstein, R. (1957). Motion of a gyro with Cardan suspension of non-negligible mass. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu14864646278095

Chicago Manual of Style (16^th Edition):

Goodstein, Robert. “Motion of a gyro with Cardan suspension of non-negligible mass.” 1957. Doctoral Dissertation, The Ohio State University. Accessed March 05, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu14864646278095.

MLA Handbook (7^th Edition):

Goodstein, Robert. “Motion of a gyro with Cardan suspension of non-negligible mass.” 1957. Web. 05 Mar 2021.

Vancouver:

Goodstein R. Motion of a gyro with Cardan suspension of non-negligible mass. [Internet] [Doctoral dissertation]. The Ohio State University; 1957. [cited 2021 Mar 05]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu14864646278095.

Council of Science Editors:

Goodstein R. Motion of a gyro with Cardan suspension of non-negligible mass. [Doctoral Dissertation]. The Ohio State University; 1957. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu14864646278095

University of Canterbury

11. Rabeendran, Nishanthan. New Approaches to Gyroscopic Lasers.

Degree: PhD, Physics, 2013, University of Canterbury

URL: http://dx.doi.org/10.26021/6825

► This thesis presents a study of two aspects of ring laser gyroscopes: Correction of systematic errors due to optical backscatter, and development of solid-state ring… (more)

Subjects/Keywords: ring lasers; lasers; laser gyroscopes; solid state laser; solid state gyroscopes

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APA (6^th Edition):

Rabeendran, N. (2013). New Approaches to Gyroscopic Lasers. (Doctoral Dissertation). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/6825

Chicago Manual of Style (16^th Edition):

Rabeendran, Nishanthan. “New Approaches to Gyroscopic Lasers.” 2013. Doctoral Dissertation, University of Canterbury. Accessed March 05, 2021. http://dx.doi.org/10.26021/6825.

MLA Handbook (7^th Edition):

Rabeendran, Nishanthan. “New Approaches to Gyroscopic Lasers.” 2013. Web. 05 Mar 2021.

Vancouver:

Rabeendran N. New Approaches to Gyroscopic Lasers. [Internet] [Doctoral dissertation]. University of Canterbury; 2013. [cited 2021 Mar 05]. Available from: http://dx.doi.org/10.26021/6825.

Council of Science Editors:

Rabeendran N. New Approaches to Gyroscopic Lasers. [Doctoral Dissertation]. University of Canterbury; 2013. Available from: http://dx.doi.org/10.26021/6825

University of California – Irvine

12. Senkal, Doruk. Micro-glassblowing Paradigm for Realization of Rate Integrating Gyroscopes.

Degree: Mechanical and Aerospace Engineering, 2015, University of California – Irvine

URL: http://www.escholarship.org/uc/item/46k9380z

► This Ph.D. dissertation reports novel fabrication processes and architectures for implementation of Rate Integrating Gyroscopes at micro-scale. Majority of the focus is directed towards development… (more)

▼ This Ph.D. dissertation reports novel fabrication processes and architectures for implementation of Rate Integrating Gyroscopes at micro-scale. Majority of the focus is directed towards development of a surface tension and pressure driven micro-glassblowing paradigm, which is envisioned to serve as an enabling mechanism for wafer-scale fabrication of 3-D micro-wineglass gyroscopes. New 2-D silicon Micro Rate Integrating Gyroscope (MRIG) architectures are also explored to bridge the gap between conventional micro-machining techniques and micro-glassblowing processes, and to serve as a test platform for various MRIG control strategies. Closed loop Whole Angle operation of these 2-D silicon MRIG architectures is presented to identify some of the control challenges associated with MRIG control, such as energy pumping and suppression of errors caused by structural imperfections.The main contribution of the thesis is the development of a high temperature (1700 °C) micro-glassblowing process for fabrication of highly symmetric and low internal dissipation 3-D fused silica wineglass resonators. Owing to the "self-healing'" properties of surface tension and pressure driven micro-glassblowing paradigm, and the low internal loss fused silica material, quality factors above 1 million and frequency splits less than 1 Hz have been demonstrated. In addition to a multi-purpose test-bed for micro-wineglass characterization, in-situ electrode structures with sub 10 micron capacitive gaps are reported for electrostatic transduction.In order to streamline the realization of MRIG control strategies, two new Si-MEMS MRIG architectures were also developed as a part of this thesis: Toroidal Ring Gyroscope (TRG) and Dual Foucault Pendulum (DFP) Gyroscope. Toroidal Ring Gyroscope consists of an outer anchor, concentric ring suspension system, and inner electrode assembly. Q-factors above 100,000 were obtained with this architecture at a compact size of 1760 micron. First demonstration of a parametrically driven MRIG is also reported as a part of this work, showing better than 20 ppm scale factor stability at 360 °/s rate input. Dual Foucault Pendulum (DFP) architecture is a conventionally machined lumped mass Micro Rate Integrating Gyroscope implemented using in-house silicon-on-insulator technology. It is believed that this two mass DFP architecture is the minimal realization of a dynamically balanced, lumped mass MRIG.Finally, a custom, multi-purpose FPGA/DSP based control system was developed to demonstrate interchangeable rate and rate integrating mechanization of micro-scale gyroscope architectures developed in this thesis. Continuous Rate Integrating Gyroscope operation is demonstrated, by electronically compensating structural imperfections via control loops, such as Phase Locked Loop (PLL), Amplitude Gain Control (AGC), quadrature null loop, and closed-loop parametric drive.

Subjects/Keywords: Mechanical engineering; Electrical engineering; Coriolis Vibratory Gyroscopes; Fused Silica; Microelectromechanical Systems; Micro-glassblowing; Micro-wineglass Gyroscopes; Rate Integrating Gyroscopes

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APA (6^th Edition):

Senkal, D. (2015). Micro-glassblowing Paradigm for Realization of Rate Integrating Gyroscopes. (Thesis). University of California – Irvine. Retrieved from http://www.escholarship.org/uc/item/46k9380z

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Senkal, Doruk. “Micro-glassblowing Paradigm for Realization of Rate Integrating Gyroscopes.” 2015. Thesis, University of California – Irvine. Accessed March 05, 2021. http://www.escholarship.org/uc/item/46k9380z.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Senkal, Doruk. “Micro-glassblowing Paradigm for Realization of Rate Integrating Gyroscopes.” 2015. Web. 05 Mar 2021.

Vancouver:

Senkal D. Micro-glassblowing Paradigm for Realization of Rate Integrating Gyroscopes. [Internet] [Thesis]. University of California – Irvine; 2015. [cited 2021 Mar 05]. Available from: http://www.escholarship.org/uc/item/46k9380z.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Senkal D. Micro-glassblowing Paradigm for Realization of Rate Integrating Gyroscopes. [Thesis]. University of California – Irvine; 2015. Available from: http://www.escholarship.org/uc/item/46k9380z

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Arizona

13. MacLane, Glenwood Lyle, 1906-. An experimental verification of the laws of gyroscopic motion .

Degree: 1934, University of Arizona

URL: http://hdl.handle.net/10150/553222

Subjects/Keywords: Gyroscopes.; Rotational motion.

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APA (6^th Edition):

MacLane, Glenwood Lyle, 1. (1934). An experimental verification of the laws of gyroscopic motion . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/553222

Chicago Manual of Style (16^th Edition):

MacLane, Glenwood Lyle, 1906-. “An experimental verification of the laws of gyroscopic motion .” 1934. Masters Thesis, University of Arizona. Accessed March 05, 2021. http://hdl.handle.net/10150/553222.

MLA Handbook (7^th Edition):

MacLane, Glenwood Lyle, 1906-. “An experimental verification of the laws of gyroscopic motion .” 1934. Web. 05 Mar 2021.

Vancouver:

MacLane, Glenwood Lyle 1. An experimental verification of the laws of gyroscopic motion . [Internet] [Masters thesis]. University of Arizona; 1934. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10150/553222.

Council of Science Editors:

MacLane, Glenwood Lyle 1. An experimental verification of the laws of gyroscopic motion . [Masters Thesis]. University of Arizona; 1934. Available from: http://hdl.handle.net/10150/553222

University of Arizona

14. Anderson, Dana Zachary. The four-mode linearly-polarized ring laser gyro .

Degree: 1981, University of Arizona

URL: http://hdl.handle.net/10150/565519

Subjects/Keywords: Optical gyroscopes.; Lasers.

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APA (6^th Edition):

Anderson, D. Z. (1981). The four-mode linearly-polarized ring laser gyro . (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/565519

Chicago Manual of Style (16^th Edition):

Anderson, Dana Zachary. “The four-mode linearly-polarized ring laser gyro .” 1981. Doctoral Dissertation, University of Arizona. Accessed March 05, 2021. http://hdl.handle.net/10150/565519.

MLA Handbook (7^th Edition):

Anderson, Dana Zachary. “The four-mode linearly-polarized ring laser gyro .” 1981. Web. 05 Mar 2021.

Vancouver:

Anderson DZ. The four-mode linearly-polarized ring laser gyro . [Internet] [Doctoral dissertation]. University of Arizona; 1981. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10150/565519.

Council of Science Editors:

Anderson DZ. The four-mode linearly-polarized ring laser gyro . [Doctoral Dissertation]. University of Arizona; 1981. Available from: http://hdl.handle.net/10150/565519

The Ohio State University

15. De Thomas, Anthony P. Nutating rate gyroscope (NURAG) concept.

Degree: PhD, Graduate School, 1969, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486650731866287

Subjects/Keywords: Engineering; Rate gyroscopes

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APA (6^th Edition):

De Thomas, A. P. (1969). Nutating rate gyroscope (NURAG) concept. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1486650731866287

Chicago Manual of Style (16^th Edition):

De Thomas, Anthony P. “Nutating rate gyroscope (NURAG) concept.” 1969. Doctoral Dissertation, The Ohio State University. Accessed March 05, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486650731866287.

MLA Handbook (7^th Edition):

De Thomas, Anthony P. “Nutating rate gyroscope (NURAG) concept.” 1969. Web. 05 Mar 2021.

Vancouver:

De Thomas AP. Nutating rate gyroscope (NURAG) concept. [Internet] [Doctoral dissertation]. The Ohio State University; 1969. [cited 2021 Mar 05]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486650731866287.

Council of Science Editors:

De Thomas AP. Nutating rate gyroscope (NURAG) concept. [Doctoral Dissertation]. The Ohio State University; 1969. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486650731866287

University of Canterbury

16. Rabeendran, Nishanthan. A Study of Ring Laser Gyroscopes.

Degree: MS, Physics, 2008, University of Canterbury

URL: http://dx.doi.org/10.26021/6771

► This thesis presents a study of a 1.6 metre square, helium-neon based ring laser gyroscope (denoted PR-1). This device is mounted on one of the… (more)

Subjects/Keywords: ring laser; gyroscopes; laser gyroscopes; rotation sensor; rotation detector

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APA (6^th Edition):

Rabeendran, N. (2008). A Study of Ring Laser Gyroscopes. (Masters Thesis). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/6771

Chicago Manual of Style (16^th Edition):

Rabeendran, Nishanthan. “A Study of Ring Laser Gyroscopes.” 2008. Masters Thesis, University of Canterbury. Accessed March 05, 2021. http://dx.doi.org/10.26021/6771.

MLA Handbook (7^th Edition):

Rabeendran, Nishanthan. “A Study of Ring Laser Gyroscopes.” 2008. Web. 05 Mar 2021.

Vancouver:

Rabeendran N. A Study of Ring Laser Gyroscopes. [Internet] [Masters thesis]. University of Canterbury; 2008. [cited 2021 Mar 05]. Available from: http://dx.doi.org/10.26021/6771.

Council of Science Editors:

Rabeendran N. A Study of Ring Laser Gyroscopes. [Masters Thesis]. University of Canterbury; 2008. Available from: http://dx.doi.org/10.26021/6771

University of California – Berkeley

17. Zhang, Fu. Control and Self-Calibration of Microscale Rate Integrating Gyroscopes (MRIGs).

Degree: Mechanical Engineering, 2015, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/42c4x70m

► This dissertation investigates the design of control algorithms and calibration methods forMicroscale Rate Integrating Gyroscopes (MRIGs). As its name implies, a MRIG operatesin rate integrating… (more)

▼ This dissertation investigates the design of control algorithms and calibration methods forMicroscale Rate Integrating Gyroscopes (MRIGs). As its name implies, a MRIG operatesin rate integrating mode and can directly measure the rotation angle of the base where itis mounted. However, the MRIG mechanical system does not spontaneously operate in arate integrating mode, but requires an active controller. Such a controller enables the MRIG to oscillate in a specific pattern that is related to the input rotation angle in a measurable way.Conventional micro-machined gyroscopes (i.e. MEMS gyroscopes) operate in rate mode (as apposed to rate integrating mode). That is, the gyroscope directly measures the rotation rate of the base. The measured rotation rate is then numerically integrated over time to obtain the input rotation angle. The main drawback of this measuring mechanism is that, by integrating, the rate measurement error will propagate over time, causing the angle measurement to drift from the real input angle. MRIG, by its operating principle, can directly measure the input rotation angle; hence it suffers from no such error propagation.A well-known control scheme for rate integrating gyroscopes was proposed by Lynch in 1995 [51]. This control scheme has demonstrated its efficacy on precisely fabricated rate integrating gyroscopes such as Hemispherical Resonance Gyroscopes (HRGs). However, for MRIGs fabricated by micro-fabrication technology, fabrication imperfections significantly degrade the gyro performance. In addition, the Lynch-proposed-scheme is essentially nonlinear. As a consequence, the controller performance is hard to predict and analyze prior to real tests.In this dissertation, a novel demodulation method is developed to transform the original nonlinear control problem into a linear time invariant controller design problem. This technique is based on the averaging method proposed by Lynch [50] but enables the use of well studied linear system theory for MRIG controller design and analysis. The resulting controller design for MRIGs is much more tractable and the performance is rather predictable. This fundamental improvement also opens up new opportunities for implementing and analyzing control systems based on linear control theory.Two schemes are proposed in this dissertation to compensate for the parameter mismatches caused by fabrication imperfections. The first one is based on electrostatic spring softening and tuning. The basic operation principle is first introduced. Then a full derivation of this method on a real MRIG configuration is conducted. Experimental results confirm that this compensation scheme can significantly attenuate the parameter mismatch.The other compensation scheme considered in this dissertation is an adaptive compensation scheme consisting of three feedforward controllers. Each of them runs on top of the corresponding feedback control loop and estimates and compensates parameter mismatches in real time. We also present a stability and convergence analysis that shows such…

Subjects/Keywords: Mechanical engineering; Calibration; Control; Microscale; Rate Integrating Gyroscopes

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APA (6^th Edition):

Zhang, F. (2015). Control and Self-Calibration of Microscale Rate Integrating Gyroscopes (MRIGs). (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/42c4x70m

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhang, Fu. “Control and Self-Calibration of Microscale Rate Integrating Gyroscopes (MRIGs).” 2015. Thesis, University of California – Berkeley. Accessed March 05, 2021. http://www.escholarship.org/uc/item/42c4x70m.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhang, Fu. “Control and Self-Calibration of Microscale Rate Integrating Gyroscopes (MRIGs).” 2015. Web. 05 Mar 2021.

Vancouver:

Zhang F. Control and Self-Calibration of Microscale Rate Integrating Gyroscopes (MRIGs). [Internet] [Thesis]. University of California – Berkeley; 2015. [cited 2021 Mar 05]. Available from: http://www.escholarship.org/uc/item/42c4x70m.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhang F. Control and Self-Calibration of Microscale Rate Integrating Gyroscopes (MRIGs). [Thesis]. University of California – Berkeley; 2015. Available from: http://www.escholarship.org/uc/item/42c4x70m

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Estadual de Campinas

18. Bacurau, Rodrigo Moreira, 1988-. Projeto e implementação de um sistema eletrônico para giroscópios interferométricos a fibra óptica de malha fechada: Design and implementation of an electronic system for closed-loop interferometric fiber optic gyroscopes.

Degree: 2017, Universidade Estadual de Campinas

URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/332999

► Abstract: Interferometric fiber-optic gyroscopes (IFOGs) are a fundamental part of inertial navigation systems used in satellite attitude control and navigation of rockets, submarines, airplanes and… (more)

▼ Abstract: Interferometric fiber-optic gyroscopes (IFOGs) are a fundamental part of inertial navigation systems used in satellite attitude control and navigation of rockets, submarines, airplanes and missiles. These devices are subject to embargoes of international commercialization and, therefore, mastering this technology is fundamental to the sovereignty of Brazil. The development of a new electronic system for inertial class closed-loop IFOGs, including the modulation, demodulation, control and communication circuit, as well as new modulation, conditioning and signal processing techniques, is presented in this thesis. A detailed analysis of the non-idealities of the modulation system (non-linearity of the modulation circuit, intensity modulation of the multi-functional integrated optical chip (MIOC) and reflections at the interface MIOC/Sagnac interferometer) was performed. Aiming to minimize the negative effects of these non-idealities, a new modulation technique based on the two-level modulation is proposed. This new technique preserves all the advantages of classical two-level modulation (it does not generate significant offsets due to optical reflections and extends IFOG's full scale) and eliminates its limitation (poor scale factor control at low angular velocity). We also present in this thesis a theoretical model for the angle random walk (ARW) of IFOGs with digital modulation. This model allows for the estimation of the ARW of a gyroscope from its optical and electronic configurations, to identify the depth of modulation that minimizes the ARW for a given optical power, and to estimate the gain in the ARW with the increase of optical power. In addition, the proposed model allows identifying which components generate performance bottleneck in the system. A complete electronic circuit for IFOGs was built in which all proposed techniques were implemented. The electronic system developed in this work is considerably simpler than others previously developed and presents exceptional performance, being able to sample the Sagnac signal with excellent resolution and low noise. ...Note: The complete abstract is available with the full electronic document Advisors/Committee Members: UNIVERSIDADE ESTADUAL DE CAMPINAS (CRUESP), Ferreira, Elnatan Chagas, 1955- (advisor), Spengler, Anderson Wedderhoff, 1986- (coadvisor), Universidade Estadual de Campinas. Faculdade de Engenharia Elétrica e de Computação (institution), Programa de Pós-Graduação em Engenharia Elétrica (nameofprogram), Lisboa, Osni (committee member), Arruda, Josiel Urbaninho de (committee member), Maneira, Leandro Tiago (committee member), Dias, José Antonio Siqueira (committee member).

Subjects/Keywords: Giroscópios; Eletrônica; Ruído; Modulação digital; Gyroscopes; Electronics; Noise; Digital modulation

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APA (6^th Edition):

Bacurau, Rodrigo Moreira, 1. (2017). Projeto e implementação de um sistema eletrônico para giroscópios interferométricos a fibra óptica de malha fechada: Design and implementation of an electronic system for closed-loop interferometric fiber optic gyroscopes. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/332999

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bacurau, Rodrigo Moreira, 1988-. “Projeto e implementação de um sistema eletrônico para giroscópios interferométricos a fibra óptica de malha fechada: Design and implementation of an electronic system for closed-loop interferometric fiber optic gyroscopes.” 2017. Thesis, Universidade Estadual de Campinas. Accessed March 05, 2021. http://repositorio.unicamp.br/jspui/handle/REPOSIP/332999.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bacurau, Rodrigo Moreira, 1988-. “Projeto e implementação de um sistema eletrônico para giroscópios interferométricos a fibra óptica de malha fechada: Design and implementation of an electronic system for closed-loop interferometric fiber optic gyroscopes.” 2017. Web. 05 Mar 2021.

Vancouver:

Bacurau, Rodrigo Moreira 1. Projeto e implementação de um sistema eletrônico para giroscópios interferométricos a fibra óptica de malha fechada: Design and implementation of an electronic system for closed-loop interferometric fiber optic gyroscopes. [Internet] [Thesis]. Universidade Estadual de Campinas; 2017. [cited 2021 Mar 05]. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/332999.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bacurau, Rodrigo Moreira 1. Projeto e implementação de um sistema eletrônico para giroscópios interferométricos a fibra óptica de malha fechada: Design and implementation of an electronic system for closed-loop interferometric fiber optic gyroscopes. [Thesis]. Universidade Estadual de Campinas; 2017. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/332999

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

19. Zeits, Paul. Olefin Metatheses in Metal Coordination Spheres: Development of Gyroscope-like trans-Spanning Bis(pyridine) Complexes and Organometallic pi-Adducts of Conjugated Polymers.

Degree: PhD, Chemistry, 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10265

► The olefin metathesis reaction has become one of the most powerful carbon-carbon bond forming reaction in synthetic chemistry. This work has expanded the utility of… (more)

▼ The olefin metathesis reaction has become one of the most powerful carbon-carbon bond forming reaction in synthetic chemistry. This work has expanded the utility of olefin metathesis in metal coordination spheres in three major directions (1) the synthesis and characterization of trans-spanning bis(pyridine)PtCl2 complexes, (2) the developme-adducts of polyacetylene (PA), and (3) the development of regioregular -adducts of poly(phenylene-vinylene) (PPV). Chapter I gives a brief overview of olefin metathesis and previous applications to organometallic substrates. Chapter II details the synthesis of pyridine ligands containing alkenyl substituents, 2-NC5H4(CH2O(CH2)nCH=CH2) (n = 1, 2), 3-NC5H4(CH2O(CH2)nCH=CH2) (n = 1-5, 8, 9), and 3,5-NC5H3(p-C6H4O(CH2)7CH=CH2)2. Metalation of the new ligands with PtCl2 affords the corresponding trans-bis(pyridine)dichloroplatinum complexes, trans-PtCl2(2-NC5H4(CH2O(CH2)nCH=CH2))2 (n = 1, 2), trans-PtCl2(3-NC5H4(CH2O(CH2)nCH=CH2))2 (n = 1-5, 8, 9), and trans-PtCl2(3,5-NC5H3(p-C6H4O(CH2)7CH=CH2))2. Ring-closing metathesefirst generation catalyst followed by hydrogenations with Pd/C afford the title complexes trans-PtCl2-(NC5H4(CH2O(CH2)2n+2OCH2)H4C5N)] (n = 1, 2), trans-PtCl2-(NC5H4(CH2O(CH2)2n+2OCH2)H4C5N)] (n = 4, 8, 9), and trans-PtCl2-(NC5H3(p-C6H4O(CH2)12O-p-C6H4)2H3C5N)]. Reactions with methylmagnesium bromide afford trans-PtCl(CH3)(3-NC5H4(CH2O(CH2)nCH=CH2))2 (n = 2, 8) and trans-PtCl(CH3-(NC5H4(CH2O(CH2)nOCH2)H4C5N)] (n = 10, 18), which feature dipolar rotators. Low temperature NMR spectra in the latter remained facile on the NMR time scale in CDFCl2 at -120 degrees Celsius. Chapter III focuses on the application of ROMP with organometallic monomers to form metal pi-adducts of polyacetylene. The new complex (n4-benzene)Cp*Ir has been synthesized, crystallographically characterized, and evaluated in the ROMP reaction. Monomers (n4-benzene)CpIr, [(n6-COT)CpRu][PF6], and (n4-COT)Fe(CO)3 were also evaluated in the ROMP reaction. ROMP of (?4-benzene)CpIr with Grubbs' first generation catalyst afforded the conductive regioregular polymer CpIr-PA. Chapter IV focuses on the synthesis of the divinyl benzene complexes [Cp*Ir(C6H4(CH=CH2)2)][BF4]2 and [Cp*Ru(C6H4(CH=CH2)2)][OTf] and their polymerization via ADMET to afford PPV systems. Treatment of divinyl benzene ed the conductive regioregular polymers [Cp*Ir-PPV][BF4]2n and [Cp*Ru-PPV][OTf]n. The photophysical properties of the new -metal adducts of PPV exhibit blue-shifts relative to typical PPVs and retain strong UV absorption. Advisors/Committee Members: Gladysz, John A. (advisor), Darensbourg, Donald J. (committee member), Gabbai, Francois P. (committee member), Grunlan, Jaime C. (committee member).

Subjects/Keywords: olefin metathesis; conjugated polymers; conducting polymers; molecular gyroscopes

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APA (6^th Edition):

Zeits, P. (2012). Olefin Metatheses in Metal Coordination Spheres: Development of Gyroscope-like trans-Spanning Bis(pyridine) Complexes and Organometallic pi-Adducts of Conjugated Polymers. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10265

Chicago Manual of Style (16^th Edition):

Zeits, Paul. “Olefin Metatheses in Metal Coordination Spheres: Development of Gyroscope-like trans-Spanning Bis(pyridine) Complexes and Organometallic pi-Adducts of Conjugated Polymers.” 2012. Doctoral Dissertation, Texas A&M University. Accessed March 05, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10265.

MLA Handbook (7^th Edition):

Zeits, Paul. “Olefin Metatheses in Metal Coordination Spheres: Development of Gyroscope-like trans-Spanning Bis(pyridine) Complexes and Organometallic pi-Adducts of Conjugated Polymers.” 2012. Web. 05 Mar 2021.

Vancouver:

Zeits P. Olefin Metatheses in Metal Coordination Spheres: Development of Gyroscope-like trans-Spanning Bis(pyridine) Complexes and Organometallic pi-Adducts of Conjugated Polymers. [Internet] [Doctoral dissertation]. Texas A&M University; 2012. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10265.

Council of Science Editors:

Zeits P. Olefin Metatheses in Metal Coordination Spheres: Development of Gyroscope-like trans-Spanning Bis(pyridine) Complexes and Organometallic pi-Adducts of Conjugated Polymers. [Doctoral Dissertation]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10265

University of Johannesburg

20. Spammer, Stephanus Johannes. A phase detection system with enhanced dynamic response for open-loop fibre-optic gyroscopes.

Degree: 2014, University of Johannesburg

URL: http://hdl.handle.net/10210/12153

D.Ing. (Electrical & Electronic Engineering)

Please refer to full text to view abstract

Subjects/Keywords: Fiber optics; Optical gyroscopes

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APA (6^th Edition):

Spammer, S. J. (2014). A phase detection system with enhanced dynamic response for open-loop fibre-optic gyroscopes. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/12153

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Spammer, Stephanus Johannes. “A phase detection system with enhanced dynamic response for open-loop fibre-optic gyroscopes.” 2014. Thesis, University of Johannesburg. Accessed March 05, 2021. http://hdl.handle.net/10210/12153.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Spammer, Stephanus Johannes. “A phase detection system with enhanced dynamic response for open-loop fibre-optic gyroscopes.” 2014. Web. 05 Mar 2021.

Vancouver:

Spammer SJ. A phase detection system with enhanced dynamic response for open-loop fibre-optic gyroscopes. [Internet] [Thesis]. University of Johannesburg; 2014. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10210/12153.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Spammer SJ. A phase detection system with enhanced dynamic response for open-loop fibre-optic gyroscopes. [Thesis]. University of Johannesburg; 2014. Available from: http://hdl.handle.net/10210/12153

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg

21. Goosen, Gerhardus Rossouw. Using low cost sensors and kalman filtering for land-based vehicle attitude estimation.

Degree: 2011, University of Johannesburg

URL: http://hdl.handle.net/10210/4218

►

M.Ing.

Vehicle attitude is the most significant of the navigational parameters in terms of its influence on accumulated dead reckoning errors. To determine the attitude… (more)

Subjects/Keywords: Detectors; Kalman filtering; Gyroscopes; Magnetometer; Inclinometer; Vehicles - Mathematical models

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APA (6^th Edition):

Goosen, G. R. (2011). Using low cost sensors and kalman filtering for land-based vehicle attitude estimation. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/4218

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Goosen, Gerhardus Rossouw. “Using low cost sensors and kalman filtering for land-based vehicle attitude estimation.” 2011. Thesis, University of Johannesburg. Accessed March 05, 2021. http://hdl.handle.net/10210/4218.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Goosen, Gerhardus Rossouw. “Using low cost sensors and kalman filtering for land-based vehicle attitude estimation.” 2011. Web. 05 Mar 2021.

Vancouver:

Goosen GR. Using low cost sensors and kalman filtering for land-based vehicle attitude estimation. [Internet] [Thesis]. University of Johannesburg; 2011. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10210/4218.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Goosen GR. Using low cost sensors and kalman filtering for land-based vehicle attitude estimation. [Thesis]. University of Johannesburg; 2011. Available from: http://hdl.handle.net/10210/4218

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Windsor

22. Khan, Nabeel Ahmad. Developing highly symmetric Microelectromechanical systems (MEMS) based butterfly gyroscopes.

Degree: MA, Mechanical, Automotive, and Materials Engineering, 2020, University of Windsor

URL: https://scholar.uwindsor.ca/etd/8376

► Microelectromechanical systems (MEMS) is the technology combining electrical components with mechanical systems at a micro scale. The combination of these two technologies allowed devices to… (more)

Subjects/Keywords: Coriolis force; Gyroscopes; MEMS; Polymumps; Quality factor; Sensors

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APA (6^th Edition):

Khan, N. A. (2020). Developing highly symmetric Microelectromechanical systems (MEMS) based butterfly gyroscopes. (Masters Thesis). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/8376

Chicago Manual of Style (16^th Edition):

Khan, Nabeel Ahmad. “Developing highly symmetric Microelectromechanical systems (MEMS) based butterfly gyroscopes.” 2020. Masters Thesis, University of Windsor. Accessed March 05, 2021. https://scholar.uwindsor.ca/etd/8376.

MLA Handbook (7^th Edition):

Khan, Nabeel Ahmad. “Developing highly symmetric Microelectromechanical systems (MEMS) based butterfly gyroscopes.” 2020. Web. 05 Mar 2021.

Vancouver:

Khan NA. Developing highly symmetric Microelectromechanical systems (MEMS) based butterfly gyroscopes. [Internet] [Masters thesis]. University of Windsor; 2020. [cited 2021 Mar 05]. Available from: https://scholar.uwindsor.ca/etd/8376.

Council of Science Editors:

Khan NA. Developing highly symmetric Microelectromechanical systems (MEMS) based butterfly gyroscopes. [Masters Thesis]. University of Windsor; 2020. Available from: https://scholar.uwindsor.ca/etd/8376

UCLA

23. Behbahani, Amir Hossein. Toward Perfection of Gyros! Modeling, Analysis, and Modification of Ring-Type Resonators.

Degree: Mechanical Engineering, 2018, UCLA

URL: http://www.escholarship.org/uc/item/6c78937j

► Gyroscopes are sensors that measure the rate of rotation of an object. One common type is a "Coriolis Vibratory Gyroscope" (CVG) which takes advantage of… (more)

▼ Gyroscopes are sensors that measure the rate of rotation of an object. One common type is a "Coriolis Vibratory Gyroscope" (CVG) which takes advantage of Coriolis coupling in sensing rotation. CVGs exploit two resonant modes for measuring the sensor's angular rate of rotation. The highest sensitivity to angular motion is achieved when the resonant modes have degenerate frequencies as this configuration provides the greatest signal-to-noise ratio (SNR) with respect to extrinsic (electronic) noise sources. One way to achieve degeneracy is to design an axisymmetric resonator such as the UCLA CVG. It is impossible to retain the symmetry during manufacturing process because small fabrication errors detune the modes of interest. To compensate for these fabrication errors, post-processing of the resonator to recover its optimal axisymmetric configuration is required. One process, considered here, is the perturbation of the resonator's mass distribution by removing mass from specific locations. Perturbing the stiffness of the structure is not permanent, and it requires relatively large size electronics. A technique which retains wafer-scale processing and packaging compatibility is described for customizing the dynamics of individual silicon resonators. The approach uses laser ablation of a protective conformal layer (Parylene-C) to expose silicon in regions that are targeted for mass removal by subsequent deep reactive-ion etching (DRIE). The technique is demonstrated on a planar axisymmetric resonator design whereby the frequency mismatches of a subset of the resonators are reduced to less than 100 mHz which is the mechanical bandwidth of the resonator.The model for the resonator is based on a perturbation analysis of ring dynamics which serves as a basis for the ring-type resonators. The perturbation expansion is found for the exact solution of imperfect rings for the case in which the damping is neglected. The results show excellent agreement with both Rayleigh-Ritz and finite element results. The perturbation model is refined and modified for multi-modal tuning where both n = 2 and n = 3 are considered. The search algorithm is also improved using linear programming and a branch and bound routine. The results are successfully demonstrated on a few devices.The damping mechanisms of this type of resonator are also studied. The thermoelastic damping which is the dominant damping mechanism in ring-type resonators is studied in detail for a ring structure. The equation of motion is derived and solved using strong form Galerkin method for imperfect rings. The imperfections studied are caused by the manufacturing processes (e.g., etch non-uniformities) and tuning the devices in practice. The analysis demonstrates a practical limitation in the tuning process where the damping asymmetries may not necessarily be removed even for the case that the frequencies are perfectly tuned. A general design guideline based on the geometry and material of the ring is presented. The temperature profile for the different materials is shown as…

Subjects/Keywords: Mechanical engineering; Design; Gyroscopes; Resonators; Sensors; Solid Mechanics; Tuning

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Behbahani, A. H. (2018). Toward Perfection of Gyros! Modeling, Analysis, and Modification of Ring-Type Resonators. (Thesis). UCLA. Retrieved from http://www.escholarship.org/uc/item/6c78937j

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Behbahani, Amir Hossein. “Toward Perfection of Gyros! Modeling, Analysis, and Modification of Ring-Type Resonators.” 2018. Thesis, UCLA. Accessed March 05, 2021. http://www.escholarship.org/uc/item/6c78937j.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Behbahani, Amir Hossein. “Toward Perfection of Gyros! Modeling, Analysis, and Modification of Ring-Type Resonators.” 2018. Web. 05 Mar 2021.

Vancouver:

Behbahani AH. Toward Perfection of Gyros! Modeling, Analysis, and Modification of Ring-Type Resonators. [Internet] [Thesis]. UCLA; 2018. [cited 2021 Mar 05]. Available from: http://www.escholarship.org/uc/item/6c78937j.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Behbahani AH. Toward Perfection of Gyros! Modeling, Analysis, and Modification of Ring-Type Resonators. [Thesis]. UCLA; 2018. Available from: http://www.escholarship.org/uc/item/6c78937j

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Minnesota

24. Poling, Bryan. Towards A Framework For Simultaneous Feature Tracking And Segmentation.

Degree: PhD, Mathematics, 2016, University of Minnesota

URL: http://hdl.handle.net/11299/182179

► This is a collection of several works that I have done during my PhD research as a graduate student at the University of Minnesota. There… (more)

▼ This is a collection of several works that I have done during my PhD research as a graduate student at the University of Minnesota. There are three parts, each focusing on a different topic in machine learning and computer vision. The common theme underlying these works is the tracking of feature points in motion video and their segmentation by object. Abstracts for each part are included below. Abstract for Part I: We present a novel approach to rigid-body motion segmentation from two views. We use a previously developed nonlinear embedding of two-view point correspondences into a 9-dimensional space and identify the different motions by segmenting lower-dimensional subspaces. In order to overcome mixed and unknown dimensions of subspaces and nonuniform distributions along them we suggest the novel concept of global dimension and its minimization for clustering subspaces with some theoretical motivation. We propose a fast projected gradient algorithm for minimizing global dimension and thus segmenting motions from 2-views. We develop an outlier detection framework around the proposed method, and we present state-of-the-art results on outlier-free and outlier-corrupted two-view data for segmenting motion. Abstract for Part II: In this part, we present a framework for jointly tracking a collection of features in motion video, which enables sharing information between the different features in the scene. Our method exploits the fact that trajectories of features from locally rigid and semi-rigid scenes are approximately confined to low-dimensional subspaces, and it uses this fact to aid the tracking of poor-quality and non-corner-like features by filling in missing information from other, better feature points. Our method significantly improves tracking performance in real-world, poorly lit scenes, does not require explicit modeling of the structure or motion of the scene, and runs in real time on a single CPU core. Abstract for Part III: In this part, we employ low-cost gyroscopes to improve general purpose feature tracking. We use some of the same ideas from Part II, except instead of borrowing information from other features to aid the tracking of poor-quality features, we rely on independent estimates of optical flow from external inertial sensors. Most related previous methods use gyroscopes to initialize and bound the search for features. In contrast, we use them to regularize the tracking energy function so that they can directly assist in the tracking of ambiguous and poor-quality features. We demonstrate that our simple technique offers significant improvements in performance over conventional template-based tracking methods, and is in fact competitive with more complex and computationally expensive state-of-the-art trackers, but at a fraction of the computational cost. Additionally, we show that the practice of initializing template-based feature trackers like KLT (Kanade-Lucas-Tomasi) using gyro-predicted optical flow offers no advantage over using a careful optical-only initialization method, suggesting…

Subjects/Keywords: Feature; Gyroscopes; Hybrid Linear Modeling; Segmentation; Subspace Clustering; Tracking

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APA (6^th Edition):

Poling, B. (2016). Towards A Framework For Simultaneous Feature Tracking And Segmentation. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/182179

Chicago Manual of Style (16^th Edition):

Poling, Bryan. “Towards A Framework For Simultaneous Feature Tracking And Segmentation.” 2016. Doctoral Dissertation, University of Minnesota. Accessed March 05, 2021. http://hdl.handle.net/11299/182179.

MLA Handbook (7^th Edition):

Poling, Bryan. “Towards A Framework For Simultaneous Feature Tracking And Segmentation.” 2016. Web. 05 Mar 2021.

Vancouver:

Poling B. Towards A Framework For Simultaneous Feature Tracking And Segmentation. [Internet] [Doctoral dissertation]. University of Minnesota; 2016. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/11299/182179.

Council of Science Editors:

Poling B. Towards A Framework For Simultaneous Feature Tracking And Segmentation. [Doctoral Dissertation]. University of Minnesota; 2016. Available from: http://hdl.handle.net/11299/182179

Georgia Tech

25. Long, Luther Street. Stability analysis of extended gyrostats.

Degree: PhD, Engineering mechanics, 1976, Georgia Tech

URL: http://hdl.handle.net/1853/15811

Subjects/Keywords: Stability; Gyroscopes; Dynamics, Rigid

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Long, L. S. (1976). Stability analysis of extended gyrostats. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/15811

Chicago Manual of Style (16^th Edition):

Long, Luther Street. “Stability analysis of extended gyrostats.” 1976. Doctoral Dissertation, Georgia Tech. Accessed March 05, 2021. http://hdl.handle.net/1853/15811.

MLA Handbook (7^th Edition):

Long, Luther Street. “Stability analysis of extended gyrostats.” 1976. Web. 05 Mar 2021.

Vancouver:

Long LS. Stability analysis of extended gyrostats. [Internet] [Doctoral dissertation]. Georgia Tech; 1976. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1853/15811.

Council of Science Editors:

Long LS. Stability analysis of extended gyrostats. [Doctoral Dissertation]. Georgia Tech; 1976. Available from: http://hdl.handle.net/1853/15811

26. Wang, Ren. Interface Circuit for a Multiple-Beam Tuning-Fork Gyroscope with High Quality Factors.

Degree: PhD, Mechanical Engineering, 2011, Old Dominion University

URL: https://digitalcommons.odu.edu/mae_etds/161

► This research work presents the design, theoretical analysis, fabrication, interface electronics, and experimental results of a Silicon-On-Insulator (SOI) based Multiple-Beam Tuning-Fork Gyroscope (MB-TFG). Based… (more)

Subjects/Keywords: Gyroscopes; Silicon-on-insulator; Aerospace Engineering; Automotive Engineering; Mechanical Engineering

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APA (6^th Edition):

Wang, R. (2011). Interface Circuit for a Multiple-Beam Tuning-Fork Gyroscope with High Quality Factors. (Doctoral Dissertation). Old Dominion University. Retrieved from https://digitalcommons.odu.edu/mae_etds/161

Chicago Manual of Style (16^th Edition):

Wang, Ren. “Interface Circuit for a Multiple-Beam Tuning-Fork Gyroscope with High Quality Factors.” 2011. Doctoral Dissertation, Old Dominion University. Accessed March 05, 2021. https://digitalcommons.odu.edu/mae_etds/161.

MLA Handbook (7^th Edition):

Wang, Ren. “Interface Circuit for a Multiple-Beam Tuning-Fork Gyroscope with High Quality Factors.” 2011. Web. 05 Mar 2021.

Vancouver:

Wang R. Interface Circuit for a Multiple-Beam Tuning-Fork Gyroscope with High Quality Factors. [Internet] [Doctoral dissertation]. Old Dominion University; 2011. [cited 2021 Mar 05]. Available from: https://digitalcommons.odu.edu/mae_etds/161.

Council of Science Editors:

Wang R. Interface Circuit for a Multiple-Beam Tuning-Fork Gyroscope with High Quality Factors. [Doctoral Dissertation]. Old Dominion University; 2011. Available from: https://digitalcommons.odu.edu/mae_etds/161

27. Lv, Xiaowei. Indoor localization in wireless sensor networks : Localisation indoor dans les réseaux de capteurs sans fil.

Degree: Docteur es, Optimisation et Sûreté des Systèmes, 2015, Troyes

URL: http://www.theses.fr/2015TROY0009

►

Ce manuscrit est dédié à la résolution du problème de localisation dans les réseaux de capteurs sans fil mobiles. Les méthodes développées se basent principalement… (more)

▼

Ce manuscrit est dédié à la résolution du problème de localisation dans les réseaux de capteurs sans fil mobiles. Les méthodes développées se basent principalement sur des caractéristiques de fingerprints ainsi que sur des informations de mobilité. Les premières s'attaquent aux valeurs de RSSI entre capteurs tandis que les deuxièmes prennent en considération la mobilité des capteurs mesurée à l'aide d'accéléromètres et de gyroscopes. La combinaison des données collectées est effectuée dans le cadre de l'analyse par intervalles, ou bien du filtrage de Kalman. Les travaux proposés introduisent des modèles de mobilité d'ordres un, deux ou trois, permettant d'approximer au mieux les trajectoires des capteurs à l'aide des accélérations mesurées. Ceux-là sont couplés à l'algorithme des K plus proches voisins, d'abord dans un système centralisé. Ensuite, les modèles de mobilités sont améliorés pour prendre en compte les rotations des nœuds. Une méthode de localisation décentralisée est également proposée dans ce qui suit, s'adaptant au mécanisme fonctionnel des réseaux de capteurs de grande échelle. Enfin, ce manuscrit propose une méthode de zonage visant à déterminer les zones dans lesquelles les capteurs résident. La méthode proposée aborde le problème de zonage en utilisant à la fois la théorie des fonctions de croyance et l'analyse par intervalles

This thesis is dedicated to solve the localization problem in mobile wireless sensor networks. It works mainly with fingerprints features and inertial movements information. The former tackles the RSSIs values between sensors while the latter deals with the objets movement attitude by using accelerometer and gyroscope. The combination of both information is performed in terms of interval analysis, or Kalman filtering. The proposed work introduces three orders mobility models to approximate nodes trajectories using accelerations, combined then to the weighted K nearest neighbors algorithm in a centralized scheme. Then the mobility models are extended up to the inertial information taking into consideration the rotations of the nodes. A decentralized localization method is also proposed in the following in view of the working mechanism of large scale sensor networks. Finally, this thesis proposes a zoning localization method aiming at determining the zones in which the nodes reside. The proposed method addresses the zoning problem by using both the belief functions theory and the interval analysis

Advisors/Committee Members: Snoussi, Hichem (thesis director), Mourad-Chehade, Farah (thesis director).

Subjects/Keywords: Réseaux de capteurs (technologie); Calcul sur des intervalles; Accéléromètres; Estimation, Théorie de l'; Kalman, filtrage de; Gyroscopes; Sensor networks; Interval analysis (Mathematics); Accelorometers; Estimation theory; Kalman filtering; Gyroscopes; 621.384

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lv, X. (2015). Indoor localization in wireless sensor networks : Localisation indoor dans les réseaux de capteurs sans fil. (Doctoral Dissertation). Troyes. Retrieved from http://www.theses.fr/2015TROY0009

Chicago Manual of Style (16^th Edition):

Lv, Xiaowei. “Indoor localization in wireless sensor networks : Localisation indoor dans les réseaux de capteurs sans fil.” 2015. Doctoral Dissertation, Troyes. Accessed March 05, 2021. http://www.theses.fr/2015TROY0009.

MLA Handbook (7^th Edition):

Lv, Xiaowei. “Indoor localization in wireless sensor networks : Localisation indoor dans les réseaux de capteurs sans fil.” 2015. Web. 05 Mar 2021.

Vancouver:

Lv X. Indoor localization in wireless sensor networks : Localisation indoor dans les réseaux de capteurs sans fil. [Internet] [Doctoral dissertation]. Troyes; 2015. [cited 2021 Mar 05]. Available from: http://www.theses.fr/2015TROY0009.

Council of Science Editors:

Lv X. Indoor localization in wireless sensor networks : Localisation indoor dans les réseaux de capteurs sans fil. [Doctoral Dissertation]. Troyes; 2015. Available from: http://www.theses.fr/2015TROY0009

Indian Institute of Science

28. Patil, Nishad. Design And Analysis Of MEMS Angular Rate Sensors.

Degree: MSc Engg, Faculty of Engineering, 2009, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/439

► Design and analysis of polysilicon and single crystal silicon gyroscopes have been carried out. Variations in suspension design have been explored. Designs that utilize in-plane… (more)

▼ Design and analysis of polysilicon and single crystal silicon gyroscopes have been carried out. Variations in suspension design have been explored. Designs that utilize in-plane and out-of-plane sensing are studied. Damping plays an important role in determining the sense response. Reduction in damping directly aﬀects sensor performance. The various damping mechanisms that are prevalent in gyroscopes are studied. Perforations on the proof mass are observed to significantly reduce the damping in the device when operated in air. The eﬀects of perforation geometry and density have been analyzed. The analysis results show that there is a two orders of magnitude reduction in damping of thick gyroscope structures with optimized perforation design. Equivalent circuit lumped parameter models have been developed to analyze gyroscope performance. The simulation results of these models have been compared with results obtained from SABER, a MEMS speciﬁc system level design tool from Coventorware. The lumped parameter models are observed to produce faster simulation results with an accuracy comparable to that of Coventorware Three gyroscopes speciﬁc to the PolyMUMPS fabrication process have been designed and their performance analyzed. Two of the designs sense motion out-of-plane and the other senses motion in-plane. Results of the simulation show that for a given damping, the gyro design with in-plane modes gives a resolution of 4º/s. The out-of-plane gyroscopes have two variations in suspension. The hammock suspension resolves a rate of 25º/s in a 200 Hz bandwidth while the design with folded beam suspension resolves a rate of 2º/s in a 12 Hz bandwidth. A single crystal silicon in-plane gyroscope has been designed with vertical electrodes to sense Coriolis motion. This design gives an order of magnitude higher Capacitance change for a given rotation in comparison to conventional comb-ﬁnger design. The eﬀects of process induced residual stress on the characteristic frequencies of the polysilicon gyroscopes are also studied. The in-plane gyroscope is found to be robust to stress variations. Analysis results indicate that the tuning fork gyroscope with the hammock suspension is the most susceptible to compressive residual stress, with a signiﬁcant drop in sensitivity at high stress values. Advisors/Committee Members: Pratap, Rudra (advisor).

Subjects/Keywords: Microelectromechanical Systems; Detectors; Gyroscopes; Damping; MEMS Gyroscopes; Gyroscope Design; Angular Rate Sensors; Electromechanics

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APA (6^th Edition):

Patil, N. (2009). Design And Analysis Of MEMS Angular Rate Sensors. (Masters Thesis). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/439

Chicago Manual of Style (16^th Edition):

Patil, Nishad. “Design And Analysis Of MEMS Angular Rate Sensors.” 2009. Masters Thesis, Indian Institute of Science. Accessed March 05, 2021. http://etd.iisc.ac.in/handle/2005/439.

MLA Handbook (7^th Edition):

Patil, Nishad. “Design And Analysis Of MEMS Angular Rate Sensors.” 2009. Web. 05 Mar 2021.

Vancouver:

Patil N. Design And Analysis Of MEMS Angular Rate Sensors. [Internet] [Masters thesis]. Indian Institute of Science; 2009. [cited 2021 Mar 05]. Available from: http://etd.iisc.ac.in/handle/2005/439.

Council of Science Editors:

Patil N. Design And Analysis Of MEMS Angular Rate Sensors. [Masters Thesis]. Indian Institute of Science; 2009. Available from: http://etd.iisc.ac.in/handle/2005/439

University of California – Berkeley

29. Goericke, Fabian Thomas. Aluminum Nitride Sensors for Harsh Environments.

Degree: Mechanical Engineering, 2013, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/7kq5s183

► Harsh environment applications include high temperature, pressure and mechanical shock. Aluminum nitride is a strong ceramic material with very good high temperature survivability. It also… (more)

Subjects/Keywords: Mechanical engineering; Electrical engineering; Materials Science; accelerometers; gyroscopes; inertial sensors; MEMS; microsystem; tuning forks

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APA (6^th Edition):

Goericke, F. T. (2013). Aluminum Nitride Sensors for Harsh Environments. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/7kq5s183

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Goericke, Fabian Thomas. “Aluminum Nitride Sensors for Harsh Environments.” 2013. Thesis, University of California – Berkeley. Accessed March 05, 2021. http://www.escholarship.org/uc/item/7kq5s183.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Goericke, Fabian Thomas. “Aluminum Nitride Sensors for Harsh Environments.” 2013. Web. 05 Mar 2021.

Vancouver:

Goericke FT. Aluminum Nitride Sensors for Harsh Environments. [Internet] [Thesis]. University of California – Berkeley; 2013. [cited 2021 Mar 05]. Available from: http://www.escholarship.org/uc/item/7kq5s183.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Goericke FT. Aluminum Nitride Sensors for Harsh Environments. [Thesis]. University of California – Berkeley; 2013. Available from: http://www.escholarship.org/uc/item/7kq5s183

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Estadual de Campinas

30. Spengler, Anderson Wedderhoff, 1986-. Técnica de condicionamento e processamento de sinais para girômetros a fibra óptica com malha fechada óptica: Signal conditioning and processing technique for fiber optic gyroscopes with optical closed-loop.

Degree: 2014, Universidade Estadual de Campinas

URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/260731

► Abstract: In this work are presented new techniques for signal conditioning and processing for inter-ferometric fiber optic gyrometers (IFOG) with optical closed-loop for inertial navigation… (more)

Subjects/Keywords: Giroscópios óticos; Processamento de sinais; Demodulação (Eletronica); Optical gyroscopes; Signal Processing; Demodulation (Electronics)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Spengler, Anderson Wedderhoff, 1. (2014). Técnica de condicionamento e processamento de sinais para girômetros a fibra óptica com malha fechada óptica: Signal conditioning and processing technique for fiber optic gyroscopes with optical closed-loop. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/260731

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Spengler, Anderson Wedderhoff, 1986-. “Técnica de condicionamento e processamento de sinais para girômetros a fibra óptica com malha fechada óptica: Signal conditioning and processing technique for fiber optic gyroscopes with optical closed-loop.” 2014. Thesis, Universidade Estadual de Campinas. Accessed March 05, 2021. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260731.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Spengler, Anderson Wedderhoff, 1986-. “Técnica de condicionamento e processamento de sinais para girômetros a fibra óptica com malha fechada óptica: Signal conditioning and processing technique for fiber optic gyroscopes with optical closed-loop.” 2014. Web. 05 Mar 2021.

Vancouver:

Spengler, Anderson Wedderhoff 1. Técnica de condicionamento e processamento de sinais para girômetros a fibra óptica com malha fechada óptica: Signal conditioning and processing technique for fiber optic gyroscopes with optical closed-loop. [Internet] [Thesis]. Universidade Estadual de Campinas; 2014. [cited 2021 Mar 05]. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/260731.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Spengler, Anderson Wedderhoff 1. Técnica de condicionamento e processamento de sinais para girômetros a fibra óptica com malha fechada óptica: Signal conditioning and processing technique for fiber optic gyroscopes with optical closed-loop. [Thesis]. Universidade Estadual de Campinas; 2014. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/260731

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations