Digital compensation technology for thermally induced nonreciprocity in coil of fiber optic gyroscopes

Yuanhong Yang; Zhongmin Zheng; Shi Yu; Weixu Zhang; Xinliu Jiang

doi:10.1117/12.481956

9 September 2002 Digital compensation technology for thermally induced nonreciprocity in coil of fiber optic gyroscopes

Yuanhong Yang, Zhongmin Zheng, Shi Yu, Weixu Zhang, Xinliu Jiang

Proceedings Volume 4920, Advanced Sensor Systems and Applications; (2002) https://doi.org/10.1117/12.481956
Event: Photonics Asia, 2002, Shanghai, China

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.

Citation Download Citation

Yuanhong Yang, Zhongmin Zheng, Shi Yu, Weixu Zhang, and Xinliu Jiang "Digital compensation technology for thermally induced nonreciprocity in coil of fiber optic gyroscopes", Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); https://doi.org/10.1117/12.481956

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