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Proceedings Paper

Technique of CO2 laser Doppler vibrometer
Author(s): Lijie Qiao; Xiping Cai; Lili An; Xiaofu Zhang; Libao Liu
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Paper 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.

Paper Details

Date Published: 8 September 1999
PDF: 5 pages
Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); doi: 10.1117/12.361133
Show Author Affiliations
Lijie Qiao, Harbin Institute of Technology (China)
Xiping Cai, Harbin Institute of Technology (China)
Lili An, Harbin Institute of Technology (China)
Xiaofu Zhang, Harbin Institute of Technology (China)
Libao Liu, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 3862:
1999 International Conference on Industrial Lasers
Fuxi Gan; Horst Weber; Zaiguang Li; Qingming Chen, Editor(s)

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