Detection of high-amplitude vibrations on rough surfaces using a photorefractive velocimeter

Philippe Delaye; Sebastien de Rossi; Gerald Roosen

doi:10.1117/12.386743

22 May 2000 Detection of high-amplitude vibrations on rough surfaces using a photorefractive velocimeter

Philippe Delaye, Sebastien de Rossi, Gerald Roosen

Proceedings Volume 4072, Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (2000) https://doi.org/10.1117/12.386743
Event: 4th International Conference on Vibration Measurement by Laser Techniques, 2000, Ancona, Italy

Abstract

We present a characterize theoretically and experimentally a photorefractive velocimeter. This device, based on two wave mixing in a rapid photorefractive crystal, measures the instantaneous velocity of a vibrating target. It is particularly adapted to the measurement of high amplitude (as high as some mm) low frequency (until some kHz) vibrations. Instantaneous velocity as high as 25 mm.s^-1 are expected to be measured with common photorefractive semiconductors and CW lasers.

Citation Download Citation

Philippe Delaye, Sebastien de Rossi, and Gerald Roosen "Detection of high-amplitude vibrations on rough surfaces using a photorefractive velocimeter", Proc. SPIE 4072, Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 May 2000); https://doi.org/10.1117/12.386743

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