Realization on identification and compensation methods for the temperature model of hemispherical resonator gyro (HRG)

Xie, Yangguang; Yi, Guoxing; Jia, Yansheng; Wang, Changhong

doi:10.1109/emeit.2011.6023187

Cited by 1 publication

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“…This paper focuses on improving the accuracy of this method using a control method during the signal solving process, but the error compensation for HRG is not researched. X. Wang, X. Yangguang and L. Boran have built a temperature model for HRG and compensate the frequency based on the temperature [ 14 , 15 , 16 , 17 ]. X. Wang has studied a method to restrain the quadrature error [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Error Model and Compensation of Bell-Shaped Vibratory Gyro

Liu

2015

Sensors

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A bell-shaped vibratory angular velocity gyro (BVG), inspired by the Chinese traditional bell, is a type of axisymmetric shell resonator gyroscope. This paper focuses on development of an error model and compensation of the BVG. A dynamic equation is firstly established, based on a study of the BVG working mechanism. This equation is then used to evaluate the relationship between the angular rate output signal and bell-shaped resonator character, analyze the influence of the main error sources and set up an error model for the BVG. The error sources are classified from the error propagation characteristics, and the compensation method is presented based on the error model. Finally, using the error model and compensation method, the BVG is calibrated experimentally including rough compensation, temperature and bias compensation, scale factor compensation and noise filter. The experimentally obtained bias instability is from 20.5°/h to 4.7°/h, the random walk is from 2.8°/h1/2 to 0.7°/h1/2 and the nonlinearity is from 0.2% to 0.03%. Based on the error compensation, it is shown that there is a good linear relationship between the sensing signal and the angular velocity, suggesting that the BVG is a good candidate for the field of low and medium rotational speed measurement.

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Section: Introductionmentioning

confidence: 99%

Error Model and Compensation of Bell-Shaped Vibratory Gyro

Liu

2015

Sensors

View full text Add to dashboard Cite

show abstract

Realization on identification and compensation methods for the temperature model of hemispherical resonator gyro (HRG)

Cited by 1 publication

References 3 publications

Error Model and Compensation of Bell-Shaped Vibratory Gyro

Error Model and Compensation of Bell-Shaped Vibratory Gyro

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