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Optical Engineering

Efficient and digital multipoint temperature measuring and monitoring in a four-axis interferometric fiber-optic gyroscope for space application
Author(s): Jing Jin; Linghai Kong; Yunlong Huang; Fei Teng
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Paper Abstract

An efficient temperature measuring and monitoring method in an interferometric fiber-optic gyroscope (FOG) for space application is presented. Resource-saving digital temperature sensors and integrated optical-circuit temperature sensors are designed and separately implemented in a field programmable gate array and the second closed loops of FOG. A multipoint temperature measurement in FOG is conducted using both kinds of temperature sensors. An FOG status-monitoring strategy is proposed by defining a status index based on multipoint temperature information and heat-transmission model of our four-axis FOG structure. Temperature measurement and status-monitoring strategy are verified by experimental results.

Paper Details

Date Published: 12 March 2015
PDF: 8 pages
Opt. Eng. 54(3) 037105 doi: 10.1117/1.OE.54.3.037105
Published in: Optical Engineering Volume 54, Issue 3
Show Author Affiliations
Jing Jin, BeiHang Univ. (China)
Linghai Kong, BeiHang Univ. (China)
Yunlong Huang, BeiHang Univ. (China)
Fei Teng, BeiHang Univ. (China)

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