Materials, Photonic Devices, and Sensors

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

[+] Author Affiliations
Jing Jin, Linghai Kong, Yunlong Huang, Fei Teng

BeiHang University, School of Instrument Science and Opto-Electronics Engineering, XueYuan Road No. 37, HaiDian District, Beijing 100191, China

Opt. Eng. 54(3), 037105 (Mar 12, 2015). doi:10.1117/1.OE.54.3.037105
History: Received January 5, 2015; Accepted February 23, 2015
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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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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

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", Opt. Eng. 54(3), 037105 (Mar 12, 2015). ; http://dx.doi.org/10.1117/1.OE.54.3.037105


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