Precision horizontal adjusting device for electrostatic suspended accelerometer ground experiments tests

A technology of level adjustment device and accelerometer, which is applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, measuring device, etc. It can solve the problem of insufficient stability of leveling mechanism and poor leveling accuracy Advanced problems, to achieve stable and reliable work, improve adjustment accuracy, and ensure the effect of adjustment accuracy

Inactive Publication Date: 2018-03-30
JIUJIANG PRECISION MEASURING TECH RES INST
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Problems solved by technology

[0004] The purpose of the present invention is to provide a precision level adjustment device, which solves the problems of low overall leveling accuracy and insufficient stabili

Method used

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  • Precision horizontal adjusting device for electrostatic suspended accelerometer ground experiments tests
  • Precision horizontal adjusting device for electrostatic suspended accelerometer ground experiments tests

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Embodiment

[0024] The device includes a lower platform with a rough adjustment function and an upper platform with a fine adjustment function. Among them, the lower platform with coarse adjustment function includes the middle plate 2, the lower plate 3, the online position measurement sensor, the 2# cross shaft mechanism 12 connecting the middle plate 2 and the lower plate 3, and the linear driver of the lower platform adjustment actuator; The functional upper platform includes the upper plate 1, the middle plate 2, the online position measurement sensor, the 1# cross shaft mechanism 4 connecting the upper plate 1 and the middle plate 2, the upper platform adjustment actuator assembly and the preload spring assembly.

[0025] The cross shaft mechanism includes a cross shaft, an angular contact ball bearing and an end cover, and the two cross shaft mechanisms are respectively rigidly connected to the corresponding two flat plates through four connecting block devices.

[0026] The upper p...

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Abstract

The invention discloses a precision horizontal adjusting device for electrostatic suspended accelerometer ground experiments tests. The device comprises an upper flat plate with a fine adjusting function, a middle flat plate with a rough adjusting function and a lower flat plate where a base is installed. A 1# cross shaft connection mechanism is connected between the upper flat plate and the middle flat plate, a 2# cross shaft connection mechanism and a linear actuator are arranged between the middle flat plate and the lower flat plate, the upper flat plate is provided with a 1# online position measuring sensor, the middle flat plate is provided with a 2# online position measuring sensor, an executing mechanism line displacement actuator and a pretension spring, one end of the pretension spring is in rigid connection with the edge of the upper flat plate, the other end of the pretension spring is in rigid connection with the middle flat plate, the 1# cross shaft connection mechanism isin rigid connection with the middle flat plate through a 2# connection block, the 2# cross shaft connection mechanism is in rigid connection with the middle flat plate through a 3 # connection block,and the 2 # cross shaft connection mechanism is in rigid connection with the lower flat plate of a 4# connection block. The problems that overall leveling precision is not high, and the stability ofa leveling mechanism is poor are solved, the precision horizontal adjusting device has the advantages of being good in stability and high in platform adjusting precision, and the adjusting precision of an adjusting platform is ensured.

Description

technical field [0001] The invention relates to a precision level adjustment device for ground test of an electrostatic levitation accelerometer. Background technique [0002] When the electrostatic levitation accelerometer is connected to the whole machine, and when the gravity component method is used to carry out the range, scale factor and noise test calibration on the ground, it is necessary to use the precision horizontal adjustment test bench to adjust the component of the gravitational acceleration in the direction of the sensitive axis of the accelerometer. Ensure that the accelerometer works in the range linear region. There are high requirements for the angle adjustment accuracy and system stability of the precision horizontal test bench. [0003] Some of the automatic leveling mechanisms in the prior art use a motor lead screw plus a nut, piezoelectric ceramics or a cam mechanism to level the workpiece at three or four points under the bearing platform, but beca...

Claims

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Application Information

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IPC IPC(8): F16M11/04F16M11/14F16M11/18G01P21/00
CPCF16M11/043F16M11/14F16M11/18G01P21/00F16M2200/047
Inventor 赖智华王晓东信光成曾悠兵苏长青
Owner JIUJIANG PRECISION MEASURING TECH RES INST
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