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Proceedings Paper

Reduction of the effect of the overflow reset in resonant frequency servo loop for resonator fiber optic gyro
Author(s): Xiao Lu; Xuhui Yu; Huilian Ma; Zhonghe Jin
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Paper Abstract

Digital proportional-integral (PI) controller is always adopted in the resonant frequency servo loop in a highperformance resonator fiber optic gyro (R-FOG). Large reset pulse at the output of the R-FOG occurs on the overflow reset of the digital PI controller, which limits the lock-in frequency accuracy and system response. To reduce the effect of the overflow reset in the digital PI, an auto-controlled reset technique is proposed and experimentally demonstrated. As a result, the time back to the lock-in state falls from 8 s to 5 ms. With the integration time of 1 s, the equivalent accuracy of the resonant frequency servo loop is improved to 0.18 deg/h.

Paper Details

Date Published: 15 October 2013
PDF: 5 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89240P (15 October 2013); doi: 10.1117/12.2031547
Show Author Affiliations
Xiao Lu, Zhejiang Univ. (China)
Xuhui Yu, Zhejiang Univ. (China)
Huilian Ma, Zhejiang Univ. (China)
Zhonghe Jin, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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