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Proceedings Paper

Microprocessor-based phase track for fiber optic gyroscope application
Author(s): Zhen-he Fang; Changhong Shen; Minxing Zhang; Yi Ping Wang
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Paper Abstract

We describe a digital integrating fiber-optic gyroscope with a microprocessor-based phase tracker, using an open-loop configuration. The Sagnac phase shift is electrically compensated by a phase generated in the microprocessor-based system. Different from analog schemes, this phase tracker is based on software generation of sine- and cosine-dependent compensating functions that are deduced from integrated interferometric output of gyroscope using dynamic phase modulation. Computer simulation has shown that this scheme may provide wide- dynamic-range sensing with an open loop fiber gyroscope. Potentially a group of fiber optic gyroscopes with such a phase tracker may be interfaced directly to navigation systems.

Paper Details

Date Published: 9 March 1994
PDF: 6 pages
Proc. SPIE 2070, Fiber Optic and Laser Sensors XI, (9 March 1994); doi: 10.1117/12.169909
Show Author Affiliations
Zhen-he Fang, Shanghai Univ. of Science and Technology (China)
Changhong Shen, Shanghai Univ. of Science and Technology (China)
Minxing Zhang, Shanghai Univ. of Science and Technology (China)
Yi Ping Wang, Shanghai Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 2070:
Fiber Optic and Laser Sensors XI
Ramon P. DePaula, Editor(s)

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