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An easy-to-install three-dimensional rotation amount testing device and testing method

A technology of three-dimensional rotation and testing method, which is applied to measurement devices, testing of machine/structural components, and static/dynamic balance testing, etc. It can solve the problems of difficulty in installation and calibration of accelerometers, increase of random errors, and easy installation errors. , to achieve the effect of simple installation and calibration, reducing installation errors and strong applicability

Active Publication Date: 2021-11-30
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of scattered installation of accelerometers, the above installation requirements are prone to installation errors, and the accelerometers are installed together to increase random errors caused by random noise and irreversible residual errors
The traditional accelerometer-based rotation measurement scheme will bring great difficulties to the installation and calibration of the accelerometer

Method used

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  • An easy-to-install three-dimensional rotation amount testing device and testing method
  • An easy-to-install three-dimensional rotation amount testing device and testing method
  • An easy-to-install three-dimensional rotation amount testing device and testing method

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] The invention provides a three-dimensional rotation amount testing device and a testing method which are easy to install. Nine groups of accelerometers are dispersedly installed on an object for three-dimensional rotation in space, and each group includes a light-weight thin plate and two The uniaxial accelerometer whose measurement direction is parallel, the relative position of the nine sets of accelerometers remains unchanged during the rotation of the object to be measured, and the measurement results of the nine sets of accelerometers can be calculated to obtain the three-dimensional rotation of the center of gravity of the object. .

[0027] like figure 1 As shown, the three-dimensional rotational amount testing device of the present invention includes light weight thin plates 1, light weight thin plates 2, light weight ...

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Abstract

The invention relates to a conveniently installed three-dimensional rotation amount testing device and testing method. Nine groups of accelerometers are dispersedly installed on an object to be tested for spatial three-dimensional rotation. The relative positions of the nine groups of accelerometers remain unchanged during the rotation of the object to be measured, and the measurement results of the nine groups of accelerometers can be calculated to obtain the spatial three-dimensional rotation of the object to be measured. The test device and the test method are beneficial to reduce the difficulty of installation and calibration, reduce the installation error, and further improve the measurement accuracy.

Description

technical field [0001] The invention relates to the technical field of three-dimensional rotation measurement, in particular to a conveniently installed three-dimensional rotation measurement device and a testing method. Background technique [0002] Rotation measurement is widely used in human activities. The so-called amount of rotation includes angular displacement, angular velocity and angular acceleration, and the amount of rotation determines the attitude of the moving object. Gyroscopes are usually used to measure the amount of rotation, but high-precision gyroscopes are usually expensive and bulky, while low-precision gyroscopes have problems such as poor durability, large zero offset drift errors, and poor impact resistance. Since the acceleration of a certain point in a space-moving object contains rotation information in a certain direction, an array formed by multiple accelerometers distributed in the object can be used to measure the rotation of the object. Wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M1/10
CPCG01M1/10
Inventor 杨鹏飞康欣党斐
Owner FUZHOU UNIV