Performance of two acquisition and signal processing systems for acoustic particle velocity measurements

Sylvain Poggi; Bruno Gazengel; Jean-Christophe Valiere

doi:10.1117/12.386739

22 May 2000 Performance of two acquisition and signal processing systems for acoustic particle velocity measurements

Sylvain Poggi, Bruno Gazengel, Jean-Christophe Valiere

Proceedings Volume 4072, Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (2000) https://doi.org/10.1117/12.386739
Event: 4th International Conference on Vibration Measurement by Laser Techniques, 2000, Ancona, Italy

Abstract

Laser Doppler Velocimetry is used here to measure sinusoidal structural velocities. Two systems for signal acquisition and processing, one available commercially and the other being developed in our laboratory, are assessed in detail. Their performance and limitations are evaluated by means of a comparison of the estimated velocities with reference values given by a laser vibrometer. Both systems show close and satisfactory performance up to 2 kHz for rms velocities higher than 1 mm/s.

Citation Download Citation

Sylvain Poggi, Bruno Gazengel, and Jean-Christophe Valiere "Performance of two acquisition and signal processing systems for acoustic particle velocity measurements", Proc. SPIE 4072, Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 May 2000); https://doi.org/10.1117/12.386739

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