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Brno University of Technology

1. Pavloň, Martin. Analýza dynamických parametrů laserových vibrometrů: Analysis of dynamic parameters of laser vibrometers.

Degree: 2019, Brno University of Technology

This diploma thesis deals with the theoretical description of interference methods used to measure vibrations, examines main parasitic effects and analyses its contribution to achievable the resolution. In the practical part, it uses several measurements to verify the effects of the level of reflected beam, stand-off distance and speckle noise. It also proposes a practical experiment for measuring dynamic parameters and signal-noise ratio. Results show that, the noise is exponentially dependent on the level of the reflected beam. The visible maximum of the vibrometer proved to be critical in terms of time stability of the measured signal level in two of the three measurements. Results of the dynamic measurement show that, the measured deviations were not degraded or significantly disturbed by the noise signal. From the measurement of the speckle noise, it emerged that the lowest level of noise is achieved with smooth and highly reflective materials. Advisors/Committee Members: Havránek, Zdeněk (advisor), Vágner, Martin (referee).

Subjects/Keywords: Laserový dopplerovský vibrometr; bezkontaktní měření vibrací; parazitní vlivy; vlastní šum; koherenční zrnitost; dynamické parametry; PDV 100; OFV 505; OFV-5000; CLV 2534.; Laser Doppler vibrometer; non-contact vibration measurement; parasitic effects; self noise; speckle; dynamic parameters; PDV 100; OFV 505; OFV 5000; CLV 2534.

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

APA (6th Edition):

Pavloň, M. (2019). Analýza dynamických parametrů laserových vibrometrů: Analysis of dynamic parameters of laser vibrometers. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/65063

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

Chicago Manual of Style (16th Edition):

Pavloň, Martin. “Analýza dynamických parametrů laserových vibrometrů: Analysis of dynamic parameters of laser vibrometers.” 2019. Thesis, Brno University of Technology. Accessed January 20, 2021. http://hdl.handle.net/11012/65063.

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

MLA Handbook (7th Edition):

Pavloň, Martin. “Analýza dynamických parametrů laserových vibrometrů: Analysis of dynamic parameters of laser vibrometers.” 2019. Web. 20 Jan 2021.

Vancouver:

Pavloň M. Analýza dynamických parametrů laserových vibrometrů: Analysis of dynamic parameters of laser vibrometers. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/11012/65063.

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

Council of Science Editors:

Pavloň M. Analýza dynamických parametrů laserových vibrometrů: Analysis of dynamic parameters of laser vibrometers. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/65063

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

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