Detection method of space optical remote sensor focusing mechanism simulating on-orbit gravity release

Abstract

The space optical remote sensor focusing mechanism simulates the on-orbit gravity release detection method, which belongs to the field of space optical remote sensor focusing mechanism detection. In order to solve the lack of state control of the tooling in the existing technology, the measurement error is large, and the focusing mechanism cannot be objectively reflected. The problem of the gravity release situation, this method installs the focusing mechanism and PI on the mounting base, installs the counterweight on the PI, and three small plane mirrors are glued to the front of the fixed part of the focusing mechanism, the front center of the moving part of the focusing mechanism and At the center of the side of the moving part of the focusing mechanism, three theodolites are respectively mounted directly in front of the three small plane mirrors; adjust the PI to monitor the small plane mirror on the front of the fixed part of the focusing mechanism and the small plane mirror glued to the side center of the moving part of the focusing mechanism The reading of the theodolite pitch direction is 90°, and then read the value of the theodolite pitch direction; turn the focusing mechanism 180° and then read the value of the theodolite pitch direction; take the average value of the two obtained values, and the difference between this value and 90° The value released by gravity.

Description

technical field [0001] The invention belongs to the technical field of space optical remote sensor focusing mechanism detection, in particular to a space optical remote sensor focus mechanism simulation on-orbit gravity release detection method, which is used to realize the space optical remote sensor focus mechanism ground simulated gravity release, and measure Get its value. Background technique [0002] With the development of the space optical remote sensor towards the direction of large field of view and high resolution, the position accuracy requirements of its internal structural parts are getting higher and higher, and the focusing mechanism, as its main or only moving part, its position Accuracy has become the top priority in space optical remote sensors. However, there will inevitably be gaps in the processing and assembly of the focusing mechanism. These gaps are likely to become the space for gravity release in a gravity-free environment, resulting in changes in ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the gravity release detection method of the focus mechanism in the prior art has large measurement errors and cannot objectively reflect the gravity release of the focus mechanism, the present invention provides a space optical remote sensor focus mechanism to simulate on-orbit gravity release Detection method

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