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Rock quartz flexibility accelerometer measuring component parameter identification calibration method

A technology of accelerometer and measuring components, which is applied in speed/acceleration/shock measurement, test/calibration of speed/acceleration/shock measurement equipment, navigation through speed/acceleration measurement, etc. Problems such as rapid increase in data volume

Inactive Publication Date: 2008-10-22
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

1. Post-processing, real-time performance is not strong
2. The amount of data is large, and there is a lot of data to be recorded, and with the increase of calibration parameters, the amount of data increases sharply and takes a long time

Method used

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  • Rock quartz flexibility accelerometer measuring component parameter identification calibration method
  • Rock quartz flexibility accelerometer measuring component parameter identification calibration method
  • Rock quartz flexibility accelerometer measuring component parameter identification calibration method

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Embodiment Construction

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Abstract

The invention provides a method for recognizing and standardizing parameters of a quartz flexible accelerometer measuring assembly. The technical proposal is as follows: a static error of the quartz flexible accelerometer measuring assembly is excited by controlling a triaxial position speed rotating floor to different positions, the dynamic error of the quartz flexible accelerometer measuring assembly is excited by controlling the triaxial position speed rotating floor to rotate at different speeds, a Kalman filter is adopted to recognize an error model parameter of the quartz flexible accelerometer measuring assembly, and an error model of the quartz flexible accelerometer measuring assembly is determined by adopting the recognized parameter. The technical proposal has positive effects on improving the standard accuracy of the quartz flexible accelerometer measuring assembly, thereby improving the accuracy of a strapdown inertial navigation system provided with the quartz flexible accelerometer measuring assembly.

Description

Parameter Identification and Calibration Method for Measurement Components of Quartz Flexible Accelerometer (1) Technical field The invention relates to a calibration method of components, in particular to a parameter identification calibration method of a quartz flexible accelerometer measurement assembly. (2) Background technology In the strapdown inertial navigation system, the accelerometer measures the specific force acceleration of the assembly as the sensitive carrier of its important sensor components. The measurement accuracy of the strapdown inertial navigation system is closely related to the accuracy of the accelerometer measurement components. The high-precision strapdown inertial navigation system requires the accelerometer measurement components to have a high resolution, to be able to clearly and accurately reflect the acceleration of the carrier, and to give corresponding signals, and also requires the zero position of the accelerometer The deviation is a...

Claims

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Application Information

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IPC IPC(8): G01P21/00G01C25/00G01C21/16
Inventor 高伟奔粤阳周广涛徐博吴磊程建华陈世同于强高洪涛王罡
Owner HARBIN ENG UNIV
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