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Staring camera micro-vibration test equipment and method

A test equipment and micro-vibration technology, applied in vibration testing, machine/structural component testing, measuring devices, etc., can solve problems such as inapplicability to staring camera vibration test, inability to simulate staring camera satellite vibration environment, etc., to improve pointing accuracy and imaging performance, aided iterative design and installation, the effect of simple structure

Pending Publication Date: 2020-11-10
SHANGHAI SATELLITE ENG INST
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this test bench cannot simulate the satellite vibration environment where the staring camera is in orbit, so it is not suitable for vibration tests of the staring camera

Method used

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  • Staring camera micro-vibration test equipment and method
  • Staring camera micro-vibration test equipment and method
  • Staring camera micro-vibration test equipment and method

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Experimental program
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Embodiment

[0060] A staring camera micro-vibration test complete set of equipment, such as figure 1 As shown, its main implementation object is the staring camera, the camera support assembly 1 isolates most of the vibration through the air spring 3, and the vibration excitation device 2 is mainly connected with the camera support assembly 1 and installed on the vibration exciter fixing tool 202 , used to generate vibration excitation.

[0061] Such as figure 2 As shown, the vibrator 201 in the vibrating device 2 is installed on the vibrator fixing tool 202, and is evenly distributed on both sides of the axis of the center of mass, and is used to apply the overall translation and the axis deflection vibration around the center of mass. When two When the exciters 201 on the side plate 102 are excited synchronously to generate vibration in the X direction, when they are excited asynchronously, they generate reciprocating deflection vibration around the Z axis.

[0062] Such as image 3...

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Abstract

The invention provides a staring camera micro-vibration test equipment and method. The staring camera micro-vibration test equipment comprises a camera support assembly 1, excitation equipment 2, an air spring 3 and a two-dimensional rotary table base 5, the camera support assembly 1 is connected with the two-dimensional rotary table base 5 through the air spring 3, and the excitation equipment 2is connected with the two-dimensional rotary table base 5 and the camera support assembly 1. A to-be-tested staring camera 4 is mounted on the camera support assembly 1; the device is simple in structure and convenient to operate, micro-vibration indexes of the staring camera to be tested are obtained through tests, iterative design and installation of staring camera products are assisted, and thepointing accuracy and imaging performance of the staring camera products in an on-orbit micro-vibration environment are improved; the influence of an external interference vibration source can be effectively weakened; according to the invention, the staring camera to be tested can generate six-degree-of-freedom vibration excitation to simulate micro-vibration conditions in multiple directions inan on-orbit environment.

Description

technical field [0001] The invention relates to the field of vibration tests, in particular to a staring camera micro-vibration test equipment and method, especially a staring camera micro-vibration test complete set of equipment and a test method thereof. Background technique [0002] At present, the staring camera imaging and pointing and positioning performance requirements are getting higher and higher during satellite operation. For the staring camera, the micro-vibration response of the satellite platform at the load installation place has a significant impact on the camera state. Therefore, in order to improve the pointing accuracy and imaging performance of the staring camera in the orbital micro-vibration environment, it is particularly important to test the influence of the satellite micro-vibration environment on the staring camera state and obtain the micro-vibration index. A multi-channel integrated test system for geostationary orbital array staring cameras (Pa...

Claims

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Application Information

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IPC IPC(8): G01M7/02G01C25/00
CPCG01M7/02G01M7/022G01M7/027G01C25/00
Inventor 周春华叶子龙贾奥男茅建伟申军烽
Owner SHANGHAI SATELLITE ENG INST
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