Method and device for compensating and calibrating scale factor of hemispherical resonant gyroscope

A hemispherical resonant gyroscope and scale factor technology, which can be used in measurement devices, instruments, etc., can solve the problems of increased system volume and power consumption, and achieve the effects of reducing complexity, reducing hardware resource consumption, and simple compensation methods.

Active Publication Date: 2020-12-18
BEIJING INST OF CONTROL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method adds additional circuit expenses to the system hardware, resulting in an increase in system size and power consumption.

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  • Method and device for compensating and calibrating scale factor of hemispherical resonant gyroscope
  • Method and device for compensating and calibrating scale factor of hemispherical resonant gyroscope
  • Method and device for compensating and calibrating scale factor of hemispherical resonant gyroscope

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Embodiment Construction

[0058] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0059] A compensation and calibration method and device for the scale factor of the hemispherical resonant gyroscope. The compensation and calibration method is used to solve the temperature stability of the scale factor of the hemispherical resonant gyroscope and to adjust the value of the scale factor of the hemispherical resonant gyroscope. The topology structure of the compensation calibration method proposed by the present invention is as follows: image 3 As shown, the compensation and calibration device for the scale factor of the hemispherical resonant gyroscope includes a core compensation and calibration module 7, which can be implemented using FPGA, and also includes a control module 6 and a V / F module 9 connected to the comp...

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Abstract

The invention discloses a compensation calibration device of hemispherical resonator gyro scale factors. The compensation calibration device of hemispherical resonator gyro scale factors comprises a control module 6, a gyro module 8, a V / F module 9, and also comprises a compensation calibration module 7; the compensation calibration module 7 is used for conversing the temperature of the gyro module 8 into the frequency of the gyro module 8 through fitting; fitting is adopted to establish a gyro scale factor and frequency model, and calculate scale factor signals; and at last, digital quantitysignals of a hemispherical resonator gyro are calculated based on pulse signals and the scale factor signals of the V / F module 9; the control module 6 is used for acquisition of temperature information of the gyro module 8, and sending the temperature information to the compensation calibration module 7.

Description

technical field [0001] The invention relates to a compensation and calibration method and device for the scale factor of a hemispherical resonant gyroscope, which can be used to adjust the size of the scale factor of the hemispherical resonant gyroscope and improve the temperature stability of the scale factor, and belongs to the technical field of inertia. Background technique [0002] The hemispherical resonant gyro is a high-precision, high-reliability, long-life and radiation-resistant inertial attitude sensor, especially suitable for aerospace applications. In recent years, with the in-depth research on the basic theory of the hemispherical resonant gyroscope, the maturity of the precision machining of the resonator, the maturity of the assembly process, and the progress of the circuit control technology, the hemispherical resonant gyroscope is gradually moving towards engineering applications. At the same time, the engineering of the hemispherical resonator gyroscope f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/005
Inventor 刘吉利李建朋武志忠李恺付明睿李勇李建鹏惠欣冯士伟陈小娟
Owner BEIJING INST OF CONTROL ENG
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