Technique of CO2 laser Doppler vibrometer

Lijie Qiao; Xiping Cai; Lili An; Xiaofu Zhang; Libao Liu

doi:10.1117/12.361133

8 September 1999 Technique of CO₂ laser Doppler vibrometer

Lijie Qiao, Xiping Cai, Lili An, Xiaofu Zhang, Libao Liu

Proceedings Volume 3862, 1999 International Conference on Industrial Lasers; (1999) https://doi.org/10.1117/12.361133
Event: International Symposium on Industrial Lasers, 1999, Wuhan, China

Abstract

A homodyne CO₂ laser radar vibration system is investigated in this paper. A loudspeaker as a cooperative object is used as a vibration source. The vibration frequency of the loudspeaker varied with the supplied voltage can be measured and can be compared with the pre-set frequency. A simple and feasible method is presented to measure the vibration frequency and amplitude. The vibration amplitude in the magnitude of micro meter can be measured precisely.

Citation Download Citation

Lijie Qiao, Xiping Cai, Lili An, Xiaofu Zhang, and Libao Liu "Technique of CO₂ laser Doppler vibrometer", Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); https://doi.org/10.1117/12.361133

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