| 谐振式光纤陀螺闭环锁频系统 |
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| 引用本文： | 闫树斌,陈浩,郑永秋,李小枫,安盼龙,张斌珍,薛晨阳.谐振式光纤陀螺闭环锁频系统[J].红外与激光工程,2014,43(12):4061-4065. |
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| 作者姓名： | 闫树斌 陈浩 郑永秋 李小枫 安盼龙 张斌珍 薛晨阳 |
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| 作者单位： | 1.中北大学仪器科学与动态测试教育部重点实验室,山西太原030051; |
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| 基金项目： | 国家自然科学基金重大研究专项，国家自然科学基金，国家杰出青年科学基金，归国留学基金 |
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| 摘 要： | 谐振式光纤陀螺(R-FOG)是基于Sagnac 效应产生的谐振频率差来检测旋转角速率的一种新型光学传感器。利用闭环锁频系统可以减小光纤环形谐振腔受温度、应力等外界环境变化的影响,提高陀螺性能。提出了数字与模拟相结合的闭环锁频系统方案设计,克服了模拟锁频电路带来的电路温漂,采用模拟解调技术来降低了对系统A/D 转换器的转换速度的要求,同时无需对复杂数字解调算法的研究。闭环锁频系统应用于陀螺测试系统中,实验测得10 s时间内的锁频精度为2.15 ()/s。
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| 关 键 词： | 谐振式光纤陀螺 锁频 零漂稳定性 |
| 收稿时间： | 2014-04-11 |
Closed loop frequency locking resonator fiber optic gyro systems |
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| 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. |
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| Authors: | Yan Shubin Chen Hao Zheng Yongqiu Li Xiaofeng An Panlong Zhang Binzhen Xue Chenyang |
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| Affiliation: | 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 |
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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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| Keywords: | resonator fiber optic gyroscope frequency locking zero drift stability |
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