Error compensation via signal correlation in high-precision closed-loop fiber optic gyros

1996 ◽  
Author(s):  
Guenter Spahlinger ◽  
Manfred W. Kemmler ◽  
Markus Ruf ◽  
Mauricio A. Ribes ◽  
Steffen Zimmermann
Keyword(s):  
High Precision ◽  
Error Compensation ◽  
Closed Loop ◽  
Fiber Optic ◽  
Signal Correlation

High-precision three-axis closed-loop fiber optic gyroscope

1998 ◽  
Author(s):  
Chunxi Zhang ◽  
Nifang Song ◽  
Xinzhen Du ◽  
HongJie Xu ◽  
Weixu Zhang
Keyword(s):  
High Precision ◽  
Closed Loop ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope

scholarly journals Analysis and Optimization of Dynamic Measurement Precision of Fiber Optic Gyroscope

2013 ◽  
Vol 2013 ◽  
pp. 1-9
Author(s):  
Hui Li ◽  
Liyang Cui ◽  
Zhili Lin ◽  
Chunxi Zhang
Keyword(s):  
High Precision ◽  
Control Algorithm ◽  
Closed Loop ◽  
Fiber Optic ◽  
Dynamic Performance ◽  
Dynamic Measurement ◽  
Measurement Precision ◽  
Fiber Optic Gyroscope ◽  
Detection Circuit ◽  
High Dynamic

In order to improve the dynamic performance of high precision interferometer fiber optic gyroscope (IFOG), the influencing factors of the fast response characteristics are analyzed based on a proposed assistant design setup, and a high dynamic detection method is proposed to suppress the adverse effects of the key influencing factors. The assistant design platform is built by using the virtual instrument technology for IFOG, which can monitor the closed-loop state variables in real time for analyzing the influence of both the optical components and detection circuit on the dynamic performance of IFOG. The analysis results indicate that nonlinearity of optical Sagnac effect, optical parameter uncertainty, dynamic characteristics of internal modules and time delay of signal detection circuit are the major causes of dynamic performance deterioration, which can induce potential system instability in practical control systems. By taking all these factors into consideration, we design a robust control algorithm to realize the high dynamic closed-loop detection of IFOG. Finally, experiments show that the improved 0.01 deg/h high precision IFOG with the proposed control algorithm can achieve fast tracking and good dynamic measurement precision.

Design of light source for ultra-high precision fiber optic gyroscope

2021 ◽  
Author(s):  
Xin Chen ◽  
Miao Yan ◽  
Jie Yu ◽  
Ruoxiang Tang
Keyword(s):  
Light Source ◽  
High Precision ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope

Closed-loop fiber-optic gyroscope

1991 ◽  
Author(s):  
Zhen-he Fang ◽  
Zhaoming Huang ◽  
Yu-qing Shen
Keyword(s):  
Closed Loop ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope
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