Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro

Yang REN; Zhong-he JIN; Yan CHEN; Hui-lian MA

doi:10.1631/jzus.C1000441

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Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro

电子工程 | Updated：2022-08-31

- Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro
- Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro
- 信息与电子工程前沿（英文） 2011年12卷第11期页码：942-950
- Affiliations：
  
  Department of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China
- Author bio：
  
  E-mail:zju.renyang@qq.com
  ‡Corresponding Author
- Funds：
- DOI：10.1631/jzus.C1000441
  中图分类号：
- 收稿：2010-12-26，
  
  修回：2011-08-29，
  
  录用：2011-04-01，
  
  纸质出版：2011-11
- Accepted：
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Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro[J]. 信息与电子工程前沿（英文）, 2011,12(11):942-950.

Yang REN, Zhong-he JIN, Yan CHEN, et al. Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(11): 942-950.
Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro[J]. 信息与电子工程前沿（英文）, 2011,12(11):942-950. DOI： 10.1631/jzus.C1000441.

Yang REN, Zhong-he JIN, Yan CHEN, et al. Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(11): 942-950. DOI： 10.1631/jzus.C1000441.

摘要

Abstract

Proportional integrator (PI) is always adopted in the resonant frequency servo loop in a resonator micro optic gyro (RMOG). The oscillation phenomenon is observed when adjusting the loop gain surpassing a threshold. This phenomenon limits system performance on step response speed and residual error. Based on the experiment system

a simulation model was set up. Further analysis shows that the threshold gain is related to the system loop filter setting and the loop delay. The traditional PI frequency servo loop technique in the RMOG system cannot keep up with the environment’s disturbance quickly enough

which leads to a large residual error. A compensating method is proposed to optimize the tracking performance

solve the oscillation problem

and speed up the system response. Simulation and experiment results show that the compensated system is superior in performance. It has less residual error in the stable state and is 10 times quicker than the uncompensated system on the step response.

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