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A horizontal single-axis quartz flexible accelerometer test rotary table with a thermostat

An accelerometer, horizontal technology, applied in the field of the horizontal single-axis quartz flexible accelerometer test turntable with a temperature box, can solve the problem of affecting the pitch rotation accuracy of the pitch axis system, the elongation or shortening of the pitch spindle, and the influence of the accelerometer test accuracy. and other problems to achieve the effect of improving test efficiency, saving labor costs, and facilitating replacement

Active Publication Date: 2017-08-04
JIUJIANG PRECISION MEASURING TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing horizontal single-axis test turntable with a temperature box, a set of angular contact ball bearing assemblies are installed at the left and right ends of the turntable support, and are directly connected to the left and right main shafts through the load support shaft, and are adjusted by the axial clearance of the bearings. Axial expansion and contraction, due to large-scale changes in temperature, will cause a small amount of elongation or shortening of the pitching spindle in the incubator, and affect the inclination rotation accuracy of the pitching shaft system, and ultimately affect the test accuracy of the accelerometer

Method used

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  • A horizontal single-axis quartz flexible accelerometer test rotary table with a thermostat
  • A horizontal single-axis quartz flexible accelerometer test rotary table with a thermostat

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Embodiment

[0026] In terms of shafting structure design, the right end support part of the shafting is designed as a fixed end by means of dredging, and axial movement is not allowed; a torque motor and an angle encoder are installed at the fixed end to provide drive for the shafting rotation Feedback signals of torque and angular position; the left end support part of the shafting is designed as a free end, allowing the shafting to elongate or shorten in the axial direction, adapting to the variation in thermal expansion and contraction of the shafting.

[0027] In terms of the material selection of the main shaft, the main shaft inside the thermostat uses a non-metallic ceramic shaft to reduce the change in expansion and contraction, and at the same time it can also reduce the temperature conduction speed between metals; the load support shaft and load support plate use " "Stainless steel" materials meet the actual use requirements, but the blanks have to be forged multiple times to imp...

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Abstract

A horizontal single-axis quartz flexible accelerometer test rotary table with a thermostat comprises a rotary table bracket component, a dense ball bearing component, a pitch spindle component, an angular contact ball bearing component, a motor component, an encoder component and a thermostat component which are all together seven parts. The dense ball bearing component is mounted on a U-shaped base by means of a left bracket; the angular contact ball bearing component, the motor component and the encoder component are mounted on a U-shaped base via a right bracket; the dense ball bearing component and the angular contact ball bearing component are connected in series via the pitch spindle component so that a quartz flexible accelerometer mounted on a load support plate is rotated about a pitch axis; the thermocouple component is mounted on a foundation by means of the thermostat bracket and ensures that the pitch spindle passes through an inner chamber of the thermostat to achieve a thermostat test of a quartz flexible accelerometer. The test rotary table has characteristics of high test efficiency, reliable performance and low cost.

Description

technical field [0001] The invention relates to a horizontal uniaxial quartz flexible accelerometer test turntable with a temperature box, which can be applied to the parameter identification of the quartz flexible accelerometer, in particular to the temperature characteristic model identification of the quartz flexible accelerometer in high and low temperature environments. Background technique [0002] The internal components of the quartz flexible accelerometer have different temperature coefficients. When the temperature changes sharply, the relative error of the output of the quartz flexible accelerometer will become larger, seriously affecting the accuracy of the quartz flexible accelerometer. Therefore, it is necessary to test the temperature characteristic model of the accelerometer in different temperature ranges. [0003] The test method of the quartz flexible accelerometer is to test the output performance parameters of the accelerometer by using the change of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00
CPCG01P21/00
Inventor 刘喜平黄茗钟明华曾悠兵潘能微吕智李力
Owner JIUJIANG PRECISION MEASURING TECH RES INST
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