Tangential velocity measurement of diffuse object by using modulated dynamic speckle

Ivan A. Popov; Leonid M. Veselov

doi:10.1117/12.248681

23 August 1996 Tangential velocity measurement of diffuse object by using modulated dynamic speckle

Ivan A. Popov, Leonid M. Veselov

Proceedings Volume 2868, Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1996) https://doi.org/10.1117/12.248681
Event: Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 1996, Ancona, Italy

Abstract

The use of transmission grating for measurement of rough body tangential velocity is discussed. The possibility of obtaining narrow component in the spectrum of scattered from rough surface and transmitted through the grating radiation is confirmed both theoretically and experimentally. The availability of a narrow component in the spectrum of scattered radiation with (Delta) f/f < 2 10^-2 enables one to measure tangential velocity of the diffuse object within +/- 0.5% accuracy.

Citation Download Citation

Ivan A. Popov and Leonid M. Veselov "Tangential velocity measurement of diffuse object by using modulated dynamic speckle", Proc. SPIE 2868, Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (23 August 1996); https://doi.org/10.1117/12.248681

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