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

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...

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

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