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Proceedings Paper

High-precision three-axis closed-loop fiber optic gyroscope
Author(s): Chunxi Zhang; Nifang Song; Xinzhen Du; HongJie Xu; Weixu Zhang
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Paper Abstract

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.

Paper Details

Date Published: 13 August 1998
PDF: 5 pages
Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); doi: 10.1117/12.318176
Show Author Affiliations
Chunxi Zhang, Beijing Univ. of Aeronautics and Astronautics (China)
Nifang Song, Beijing Univ. of Aeronautics and Astronautics (China)
Xinzhen Du, Beijing Univ. of Aeronautics and Astronautics (China)
HongJie Xu, Beijing Univ. of Aeronautics and Astronautics (China)
Weixu Zhang, Beijing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 3555:
Optical and Fiber Optic Sensor Systems
Shanglian Huang; Kim D. Bennett; David A. Jackson, Editor(s)

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