Efficient and digital multipoint temperature measuring and monitoring in a four-axis interferometric fiber-optic gyroscope for space application

Jing Jin; Linghai Kong; Yunlong Huang; Fei Teng

doi:10.1117/1.OE.54.3.037105

12 March 2015 Efficient and digital multipoint temperature measuring and monitoring in a four-axis interferometric fiber-optic gyroscope for space application

Jing Jin, Linghai Kong, Yunlong Huang, Fei Teng

Author Affiliations +

Optical Engineering, Vol. 54, Issue 3, 037105 (March 2015). https://doi.org/10.1117/1.OE.54.3.037105

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.

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Jing Jin, Linghai Kong, Yunlong Huang, and Fei Teng "Efficient and digital multipoint temperature measuring and monitoring in a four-axis interferometric fiber-optic gyroscope for space application," Optical Engineering 54(3), 037105 (12 March 2015). https://doi.org/10.1117/1.OE.54.3.037105

Published: 12 March 2015

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