Study on the calibration method of metrological performance of ring laser gyroscope

2016 ◽  
Author(s):  
Dan Qiao ◽  
Zi Xue ◽  
Yao Huang
Keyword(s):  
Ring Laser ◽  
Calibration Method ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope ◽  
Metrological Performance

scholarly journals Error Modeling, Calibration, and Nonlinear Interpolation Compensation Method of Ring Laser Gyroscope Inertial Navigation System

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Jianli Li ◽  
Yanhai Ma ◽  
Chen Xiyuan
Keyword(s):  
Navigation System ◽  
Ring Laser ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Calibration Method ◽  
Error Modeling ◽  
Working Environment ◽  
Nonlinear Interpolation ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope

In order to improve the precision of Strapdown Inertial Navigation System (SINS) and reduce the complexity of the traditional calibration method, a novel calibration and compensation scheme is proposed. An optimization calibration method with four-direction rotations is designed to calculate all error coefficients of Ring Laser Gyroscope (RLG) SINS in a series of constant temperatures. According to the actual working environment, the temperature errors of RLG SINS are compensated by a nonlinear interpolation compensation algorithm. The experimental results show that the inertial navigation errors of the proposed method are reduced.

scholarly journals Precision Angle Measurement Systems on the Basis of Ring Laser Gyro

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6930
Author(s):  
Yuri V. Filatov ◽  
Petr A. Pavlov ◽  
Alexander A. Velikoseltsev ◽  
K. Ulrich Schreiber
Keyword(s):  
Ring Laser ◽  
Operating Mode ◽  
Calibration Method ◽  
Angle Measurement ◽  
Navigation Systems ◽  
Laser Gyro ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope ◽  
Laser Dynamic Goniometer ◽  
Cross Calibration

The main application of a ring laser gyroscope is navigation. It is currently the most widely used device for strapdown inertial navigation systems. However, it is also applicable for high-precision angle metrology systems. This paper discusses the properties of a laser dynamic goniometer (LDG) based on the ring laser gyroscope and designed for the calibration of optical polygons and digital angle converters, and for the measurement of angles between external mirrors (theodolite operating mode). We consider the main sources of uncertainty, such as the ring laser gyro bias due to an external magnetic field and the instability caused by the velocity of rotation along with applicable methods of their compensation. The reversal method providing separation of uncertainties of the LDG and the calibrated angle converter is analyzed in detail. The simplified cross-calibration method is also considered. The results of calibration of optical encoders of various designs—with and without their own rotors (on-axis and off-axis in Euramet terminology)—are presented. Some results of the dynamic goniometer for the measurement of angles between external mirrors are presented. It is shown that the LDG in this mode of operation demonstrates better accuracy than modern theodolites and total stations.

scholarly journals Concept of MEMS Ring Laser Gyroscope with Movable Optical Parts

2009 ◽  
Vol 1 (1) ◽  
pp. 564-567 ◽  
Author(s):  
T. Hashimoto ◽  
J. Maeya ◽  
T. Fujita ◽  
K. Maenaka
Keyword(s):  
Ring Laser ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope

Resonant diffraction mechanism, nonreciprocity, and lock-in in the ring-laser gyroscope

1993 ◽  
Vol 47 (1) ◽  
pp. 543-551 ◽  
Author(s):  
Fabien Bretenaker ◽  
Bruno Lépine ◽  
Annie Le Calvez ◽  
Olivier Adam ◽  
Jean-Paul Taché ◽  
...  
Keyword(s):  
Ring Laser ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope ◽  
Lock In

The influence of noise on output of Ring Laser Gyroscope

2005 ◽  
Vol 119 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Wang Kedong ◽  
Yan Lei ◽  
Gu Qitai
Keyword(s):  
Ring Laser ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope ◽  
Influence Of Noise

Performance Evaluation of Integrated Semiconductor Ring Laser Gyroscope

2017 ◽  
Vol 35 (16) ◽  
pp. 3555-3561 ◽  
Author(s):  
Arpit Khandelwal ◽  
Azeemuddin Syed ◽  
Jagannath Nayak
Keyword(s):  
Performance Evaluation ◽  
Ring Laser ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope ◽  
Semiconductor Ring Laser

Beam Precision Coupling Method and Experiment of Ring Laser Gyroscope

2020 ◽  
Vol 47 (6) ◽  
pp. 0601009
Author(s):  
龚天乐 Gong Tianle ◽  
欧阳航空 Ouyang Hangkong ◽  
马立 Ma Li ◽  
赵志杰 Zhao Zhijie ◽  
荣伟彬 Rong Weibin
Keyword(s):  
Ring Laser ◽  
Coupling Method ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope
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