Yan Shubin, Chen Hao, Zheng Yongqiu, Li Xiaofeng, An Panlong, Zhang Binzhen, Xue Chenyang. Closed loop frequency locking resonator fiber optic gyro systems[J]. Infrared and Laser Engineering, 2014, 43(12): 4061-4065.
| Citation:
|
Yan Shubin, Chen Hao, Zheng Yongqiu, Li Xiaofeng, An Panlong, Zhang Binzhen, Xue Chenyang. Closed loop frequency locking resonator fiber optic gyro systems[J]. Infrared and Laser Engineering, 2014, 43(12): 4061-4065.
|
Closed loop frequency locking resonator fiber optic gyro systems
-
Yan Shubin1,2
,
-
Chen Hao1,2
,
-
Zheng Yongqiu1,2
,
-
Li Xiaofeng1,2
,
-
An Panlong1,2
,
-
Zhang Binzhen1,2
,
-
Xue Chenyang1,2
- 1.
Key Laboratory of Instrumentation Science and Dynamic Measurement Ministry of Education,North University of China,Taiyuan 030051,China;
- 2.
Science and Technology on Electronic Test & Measurement Laboratory,Taiyuan 030051,China
- Received Date: 2014-04-11
- Rev Recd Date:
2014-05-13
- Publish Date:
2014-12-25
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Abstract
Resonator fiber optic gyro (R -FOG) is a novel optical sensor whose resonant frequency changes due to the Sagnac effect. The closed loop frequency locking system can decrease the effect of temperature stress and other external environmental changes on fiber ring resonator and so improve the performance of the gyroscope. The design of closed loop frequency locking system where digital circuits and analog circuits were combined was proposed. It overcame the temperature drift in analog circuits, reduced A/D converter converting speed of system, also did not need complex digital demodulation algorithm. Using this design, locking frequency accuracy of 2.15 ()/s can be obtained in 10 s.
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