Space Optical Remote Sensor Vacuum Thermal Test Extraterrestrial Heat Flow Simulator

Abstract

The invention discloses an extraterrestrial heat flow simulator for a vacuum heat test of a space optical remote sensor, and belongs to the technical field of ground tests of space optical remote sensors. The extraterrestrial heat flow simulator for the vacuum heat test of the space optical remote sensor is used for solving the problems that in the prior art, a heat balance test and a heat optical test of the optical remote sensor cannot be carried out synchronously. The extraterrestrial heat flow simulator for the vacuum heat test of the space optical remote sensor comprises a barrel and supports, wherein the barrel is of a hollow structure, black paint coats the inner surface of the barrel, the emissivity of the black paint is larger than or equal to 0.85, a film type electric heater adheres to the outer surface of the barrel, the supports comprise the upper support and the lower support, the upper support and the lower support are connected through n height adjusting bolts, and the upper support and circular supporting rings are welded together. According to the extraterrestrial heat flow simulator for the vacuum heat test of the space optical remote sensor, due to the facts that the diameter of the end face of the front end of the barrel is equal to the caliber of a light inlet of the space optical remote sensor, the diameter of the rear end of the cylindrical barrel is no smaller than the diameter of a shadow, at the position almost parallel to the end face of a light source, of a field angle of the optical remote sensor, and the position of the shadow is arranged at the rear end of the cylindrical barrel, the heat balance test and the heat optical test can be planned together, the working conditions of the tests are carried out in a crossed mode, the test period can be shortened, and the test cost can be reduced.

Description

technical field [0001] The invention belongs to the field of space optical remote sensor ground test technology, in particular to a space optical remote sensor vacuum thermal test extraterrestrial heat flow simulator. Background technique [0002] Space optical remote sensor is a widely used aerospace imaging payload, which can perform tasks such as land reconnaissance, ocean surveillance, and ground reconnaissance. In the actual development process of its products, it is necessary to carry out sufficient and strict ground vacuum thermal test verification on the whole machine. The vacuum thermal test not only needs to verify the thermal control design of the remote sensor, but also simulates the imaging under the operating temperature environment of the orbit. Quality predicts. [0003] Vacuum thermal tests are generally carried out in a space environment simulator. When simulating the on-orbit temperature environment, it is necessary to simulate the heat flow outside the s...

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Problems solved by technology

[0004] The purpose of the present invention is to propose a space optical remote sensor vacuum thermal test extraterrestrial heat flow simulator to solve the problem that the prior art cannot satisfy the simultaneous progress of the optical remote sensor thermal balance test and thermo-optical test

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