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Laser vibrometry meets laser speckle

conference contribution
posted on 22.01.2010 by Steve Rothberg, Ben Halkon
This paper begins with a review of the fundamental mechanism by which speckle noise is generated in Laser Vibrometry before describing a new numerical simulation of speckle behaviour for prediction of noise level in a real measurement. The simulation data provides real insight into the phase and amplitude modulation of the Doppler signal as a result of speckle changes. The paper also includes experimental data looking at the influence of speckle noise in measurements on rotors with a selection of surface treatments and in scanning and tracking configurations.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

HALKON, B.J. and ROTHBERG, S.J., 2004. Laser vibrometry meets laser speckle. IN: Sixth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications

Publisher

© 2004 Society of Photo-Optical Instrumentation Engineers.

Version

VoR (Version of Record)

Publication date

2004

Notes

This is a conference paper [© Society of Photo-Optical Instrumentation Engineers]. It is also available at: http://dx.doi.org/10.1117/12.579760 .One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Book series

Proceedings of the SPIE;5503 (280)

Language

en

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