13 August 1998 High-precision three-axis closed-loop fiber optic gyroscope
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The architecture and performance of single axis digital closed-loop FOG are first described. To achieve high precision and large dynamic range, the optic sensor of single unit uses a multifunction integrated optic chip (MIOC), and fiber used in FOG are polarization-preserving fiber. The signal detection scheme of single axis FOG is also analyzed. Based on single axis unit, three-axis FOG scheme is presented. The optic sensor of three-axis unit includes three MIOC, and the signal detection part is optimal designed. To meet the requirement of real-time processing, high speed digital signal processor is used as center processor. Finally, the test result of single-axis digital closed-loop FOG are presented. As the result shows, the bias drift of 0.1 is achieved.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chunxi Zhang, Chunxi Zhang, Nifang Song, Nifang Song, Xinzhen Du, Xinzhen Du, HongJie Xu, HongJie Xu, Weixu Zhang, Weixu Zhang, } "High-precision three-axis closed-loop fiber optic gyroscope", Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); doi: 10.1117/12.318176; https://doi.org/10.1117/12.318176


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