| An Open-Loop Test of a Resonator Fiber Optic Gyro |
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| 作者姓名： | Zhang Xulin Ma Huilian Jin Zhonghe Ding Chun |
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| 作者单位： | 浙江大学信息与电子工程系，杭州 310027;浙江大学信息与电子工程系，杭州 310027;浙江大学信息与电子工程系，杭州 310027;浙江大学信息与电子工程系，杭州 310027 |
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| 基金项目： | 教育部优秀青年教师资助计划 |
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| 摘 要： | 谐振式光纤陀螺是基于光学Sagnac效应来测量载体旋转角速度的一种新型传感器.利用调相谱检测技术,建立了谐振式陀螺的开环响应测试系统.利用自行研制的锁相放大器和反馈控制电路,得到了线性度很好的解调曲线.从解调曲线的线性工作区可进一步得到系统的动态范围高达 4.2～-4.2rad/s.通过对顺时针和逆时针光路采用不同的频率调制,成功地观察到对应两个不同旋转方向的陀螺开环响应输出信号.最后,对系统的零漂进行了测试,在5s时间内观察到系统的零漂为0.02rad/s.
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| 关 键 词： | 光电子学 谐振式光纤陀螺 调相谱检测技术 optoelectronics resonator fiber optic gyro phase modulation spectroscopy 谐振式光纤陀螺 开环响应 测试 Resonator Fiber Optic Gyro taking countermeasures system noise fluctuation output signal bias drift function time different phase modulation spectroscopy gyro dynamic range demodulation curve amplifier |
| 文章编号： | 0253-4177(2006)04-0688-04 |
| 收稿时间： | 11 12 2005 12:00AM |
| 修稿时间： | 01 12 2006 12:00AM |
An Open-Loop Test of a Resonator Fiber Optic Gyro |
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| Zhang Xulin,Ma Huilian,Jin Zhonghe,Ding Chun.An Open-Loop Test of a Resonator Fiber Optic Gyro[J].Chinese Journal of Semiconductors,2006,27(4):688-691. |
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| Authors: | Zhang Xulin Ma Huilian Jin Zhonghe and Ding Chun |
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| Affiliation: | Department of Information Science & Electronic Engineering,Zhejiang University,Hangzhou 310027,China;Department of Information Science & Electronic Engineering,Zhejiang University,Hangzhou 310027,China;Department of Information Science & Electronic Engineering,Zhejiang University,Hangzhou 310027,China;Department of Information Science & Electronic Engineering,Zhejiang University,Hangzhou 310027,China |
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| Abstract: | The resonator fiber optic gyro (R-FOG),which utilizes a resonance frequency change due to the Sagnac effect,is a promising candidate for the next generation inertial rotation sensor.In this study,an open-loop R-FOG is set up using phase modulation spectroscopy.First,the demodulation curve is obtained using a lock-in amplifier.From the demodulation signal,a gyro dynamic range of ±4.2rad/s is obtained.Then,using different phase modulation frequencies,the open-loop gyro output signal is measured when the gyro is rotated clockwise or counterclockwise.The bias drift as a function of time is also measured.The fluctuation of the output over 5s is about 0.02rad/s.The drift can be reduced by taking countermeasures against system noise. |
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| Keywords: | optoelectronics resonator fiber optic gyro phase modulation spectroscopy |
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