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Proceedings Paper

Digital compensation technology for thermally induced nonreciprocity in coil of fiber optic gyroscopes
Author(s): Yuanhong Yang; Zhongmin Zheng; Shi Yu; Weixu Zhang; Xinliu Jiang
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Paper Abstract

Based on the characteristic of thermal induced nonreciprocity in coil of fiber optic gyroscope (FOG) and the heat-conduction model, a simple and universal model was worked out. It is a low-pass and time delay response to temperature. The model was digitized with a digital smooth filter process and a time delay process and the experimental study was done with an open-loop FOG. The bias drift due to temperature was reduced to 18.2% of that before compensation.

Paper Details

Date Published: 9 September 2002
PDF: 4 pages
Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); doi: 10.1117/12.481956
Show Author Affiliations
Yuanhong Yang, Beijing Univ. of Aeronautics and Astronautics (China)
Zhongmin Zheng, Beijing Univ. of Aeronautics and Astronautics (China)
Shi Yu, Beijing Univ. of Aeronautics and Astronautics (China)
Weixu Zhang, Beijing Univ. of Aeronautics and Astronautics (China)
Xinliu Jiang, Beijing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 4920:
Advanced Sensor Systems and Applications
Yun-Jiang Rao; Julian D. C. Jones; Hiroshi Naruse; Robert I. Chen, Editor(s)

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