Analysis and experiment of random walk coefficient of high precision fiber optic gyroscope

2019 ◽  
Author(s):  
wenlong zuo ◽  
Bohan LIU ◽  
XIN CHEN ◽  
shuyin zhang
Keyword(s):  
Random Walk ◽  
High Precision ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope

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

Test Method of Fiber Optic Gyroscope Based on Allan Variance

2011 ◽  
Vol 311-313 ◽  
pp. 1357-1360
Author(s):  
Ai Jun Zhou ◽  
Guang Ren ◽  
Hong Jin Zhou
Keyword(s):  
Random Walk ◽  
Fiber Optic ◽  
Quantum Noise ◽  
Technical Specification ◽  
Allan Variance ◽  
Test Method ◽  
Digital Data ◽  
Fiber Optic Gyroscope ◽  
Noise Rate ◽  
Data Collection Program

Allan variance based spline fit method is designed to determine some key technical specification of fiber optic gyroscope including random walk coefficient, bias stability, rate ramp, quantum noise, rate random walk, and so on. LabView based visualization data collection program is developed to sample the output digital data of KVH E•Core 2000 fiber optic gyroscope. The test results show that the method is good for improving the specification determination accuracy, and can simplify the test flow as well.

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

Design and Implementation of FOG Based Gyrocompass

2013 ◽  
Vol 332 ◽  
pp. 124-129 ◽  
Author(s):  
Aqeel Abbas
Keyword(s):  
High Precision ◽  
Fiber Optic ◽  
Low Cost ◽  
Test Results ◽  
Fiber Optic Gyroscope ◽  
Design And Implementation ◽  
Computer Based ◽  
Novel Design

A novel design of gyrocompass consisting of a single axis Fiber Optic Gyroscope (FOG) and a Theodolite is proposed to meet the requirements of low-cost, fast and high-precision. This algorithm uses FOG data and theodolite encoder feedback to determine Azimuth. Micro computer based software is also discussed which was developed for implementation of this scheme; finally test results and plots are briefly presented which proves effectiveness of the designed methodology. By this design an accuracy of 0.08ois achieved in approximately 5 min time.

Results and flight tests of high precision photonic crystal fiber optic gyroscope

2020 ◽  
Vol 60 ◽  
pp. 102365
Author(s):  
Bo Yang ◽  
Yong Li ◽  
Fei Teng ◽  
Li Sun ◽  
Xiaona Zhou ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
High Precision ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope ◽  
Flight Tests ◽  
Crystal Fiber

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.

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