Temperature control device and method for optical window of space environment simulator

Abstract

The invention relates to a temperature control device and a temperature control method, in particular to a temperature control device and method for an optical window of a space environment simulator,which are suitable for optical index testing of a space camera ground thermo-optical test. The invention provides the temperature control device and method for an optical window of a space environment simulator to solve the technical problems that an existing temperature control device for the optical window of the space environment simulator is large in size and poor in temperature control effect or a heating film is pasted to influence an optical test result. The device comprises a mounting bracket, a control unit and a cylindrical heating unit, the mounting bracket is arranged at the bottom of the heating unit; the heating unit sequentially comprises a heating cylinder, an electric heating layer and a multi-layer heat insulation assembly from inside to outside. Spaceflight black paintis sprayed on the inner surface of the heating cylinder; the electric heating layer is formed by sticking a thin film type electric heating sheet along the circumferential surface of the outer side ofthe heating cylinder; and the film type electric heating sheets are divided into multiple groups for independent heating along the axial direction of the heating cylinder. According to the method, the device is used for controlling the temperature of the optical window.

Description

technical field [0001] The present invention relates to a temperature control device and method, in particular to a temperature control device and method for the optical window of a space environment simulator, which is suitable for the optics of the space camera ground thermal optical test when the internal heat sink temperature of the space environment simulator is less than 100K. Indicator test. Background technique [0002] When the space camera is used for space mission detection, the camera lens and hood will face complex external heat flow space environments such as vacuum, cold black background, solar radiation, planetary reflection and planetary radiation. Before launch, it is necessary to use a space environment simulator on the ground to conduct sufficient thermo-optical tests to assess whether the adaptability and optical indicators of the space camera in a specific environment meet the design requirements. [0003] During the thermo-optical test, the space came...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the technical problems of the existing temperature control device and method of the optical window of the space environment simulator, such as large volume, poor temperature control effect, or the effect of pasting the heating film on the optical test results, and to provide an optical window of the space environment simulator. Temperature control device and method

Images