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Proceedings Paper

Research on the laser interferometric vibration measurement system based on orthogonal signals
Author(s): Shenglai Zhen; Bo Zhang; Wenliang Hao; Chengmei Zhang; Fei Ai; Benli Yu
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Paper Abstract

The interferometric vibration sensor with quadrature detection can generate orthogonal signals by optical configuration. The influence of the DC component existing in the interferometric orthogonal signals is discussed in this paper. The signals were processed by time derivation and arctangent algorithm to demodulated the analog signals. Theoretical analysis and experimental results prove that this method can be used to eliminate the DC component in the signal, meanwhile, the micro-vibration signals can be measured accurately.

Paper Details

Date Published: 9 November 2010
PDF: 7 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78532O (9 November 2010); doi: 10.1117/12.870148
Show Author Affiliations
Shenglai Zhen, Anhui Univ. (China)
Bo Zhang, Anhui Univ. (China)
Wenliang Hao, Anhui Univ. (China)
Chengmei Zhang, Anhui Univ. (China)
Fei Ai, Anhui Univ. (China)
Benli Yu, Anhui Univ. (China)


Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

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