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Proceedings Paper

Research on fiber-optic gyroscope signal detection with lock-in amplifier
Author(s): Xia Zhang; Tianze Li; Xiaojie Song; Chuan Jiang
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Paper Abstract

Application Principles of Lock-in amplifier for the detection of weak signals are represented in the paper. Fiber optic gyroscope ,a newest rate sensor is analysized about its' Sagnac effect, as well as the source of optical noise. The signal of fiber optic gyroscope is submerged in the optical noise and circuit noise. Based on the signal characteristics of the fiber optic gyroscope, a detective method with Lock-in amplifier is presented. Finally, a simulation with Matlab is done , from the simulative results, konwing that bandwidth of equivalent noise is greatly reduced with the detective method of Lockin amplifier. Thereby signal to noise ratio is increased, so the precision of fiber-optic gyroscope is enhanced.

Paper Details

Date Published: 11 October 2010
PDF: 6 pages
Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76561O (11 October 2010); doi: 10.1117/12.864203
Show Author Affiliations
Xia Zhang, Shandong Univ. of Technology (China)
Tianze Li, Shandong Univ. of Technology (China)
Xiaojie Song, Shandong Univ. of Technology (China)
Chuan Jiang, Shandong Univ. of Technology (China)


Published in SPIE Proceedings Vol. 7656:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Jose M. Sasian; Libin Xiang; Sandy To, Editor(s)

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