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Calibration system and method for MEMS-MIMU (Micro-Electromechanical System-Miniature Inertial Measurement Unit)

A calibration system and calibration method technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of large human error, low work efficiency, cumbersome operation, etc., and achieve the effects of avoiding errors, improving work efficiency, and facilitating data collection

Inactive Publication Date: 2015-06-10
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] (1) The two computers need to be manually operated separately, which is time-consuming and labor-intensive. When the computer operating the three-axis precision turntable performs simulated motion, it can only artificially notify the operator at the data acquisition end to perform data acquisition. The human operation error is large and the work efficiency Low
[0006] (2) Only after the experiment is over, can the data actually collected by the data acquisition system be compared with the real input value of the three-axis precision turntable to calculate the corresponding error parameters. The whole process is cumbersome and inefficient

Method used

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  • Calibration system and method for MEMS-MIMU (Micro-Electromechanical System-Miniature Inertial Measurement Unit)
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  • Calibration system and method for MEMS-MIMU (Micro-Electromechanical System-Miniature Inertial Measurement Unit)

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Embodiment Construction

[0024] The structure of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0025] Such as figure 2 Shown, a kind of calibration system for MEMS-MIMU in the embodiment of the present invention, this calibration system comprises: computer, three-axis precision turntable, data acquisition system and CAN analyzer, this three-axis precision turntable is connected with computer; The The data input end of the built-in inertial unit data acquisition board of the data acquisition system is connected to the MEMS-MIMU through the RS485 interface, and the CAN bus is used as the bus transmission standard; the data output end of the inertial unit data acquisition board is connected to the main board in the CAN analyzer It is connected through 80PIN connector; the CAN analyzer is connected with computer through USB interface.

[0026] In this embodiment, the CAN analyzer can be a CANalyst II analyzer, and the MEMS-MI...

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Abstract

The invention relates to a calibration system and method for an MEMS-MIMU (Micro-Electromechanical System-Miniature Inertial Measurement Unit). The calibration system comprises a computer, a three-axis precision turntable and a data acquisition system, wherein a data input end of an inertial unit data acquisition board arranged in the data acquisition system is connected with the MEMS-MIMU by virtue of an RS485 interface, and a CAN bus is adopted as a bus transmission standard to realize data transmission with the computer. By using the calibration system and method, the control on the three-axis precision turntable and the data acquisition system can be realized by using only one computer, errors caused by manual operation are avoided, an experiment and a process of calculating error parameters can be carried out at the same time, and thus the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of calibration of micro-inertial measurement elements, in particular to a calibration system and method for MEMS-MIMU. Background technique [0002] At present, micro-inertial measurement components such as MEMS micro-gyroscopes and micro-accelerometers have been greatly developed. The MEMS micro-inertial measurement combination MEMS-MIMU (Micro Inertial Measurement Unit) composed of MEMS micro-accelerometer and micro-gyroscope has the advantages of small size, light weight, long life, high reliability, low cost and strong adaptability to the environment. , can provide position, speed and attitude information of the moving carrier, and has broad application prospects in the field of attitude measurement and control technology. It is of great significance to carry out the research work of MIMU based on MEMS. Since the accuracy of the MEMS micro-inertial navigation system mainly depends on the accuracy of the MEMS mic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/005
Inventor 商志刚朱昀马晓川
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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