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Illumination-full-adaptation heat control device of star tracker

A star sensor and control device technology, applied in space vehicle heat protection devices, space safety/emergency devices, space vehicle guidance devices, etc., can solve complex problems such as heat flow and influence outside orbit, and achieve system composition and The effect of simple operation, simple system, and strong temperature control ability of the device

Inactive Publication Date: 2018-11-13
SHANGHAI SATELLITE ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the star sensor is installed outside the star, it will be affected by the complex heat flow outside the orbit

Method used

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  • Illumination-full-adaptation heat control device of star tracker

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 As shown, the embodiment of the present invention provides a star sensor light fully adaptive heat control device, the device includes F46 silver-plated secondary surface mirror 1, polyimide heat insulation pad 2, S781 white paint 3, electric heater 4 and low-temperature multilayer component 5; the F46 silver-plated secondary surface mirror adopts a conductive 75 μm specification, and GD414-C silicone rubber is used to paste on the outer surface of the star sensor hood except the outer surface facing away from the opening direction of the hood and star sensor head outer surface. The thickness of the polyimide heat insulation pad is 3mm, and it is installed between the star sensor hood and the star sensor head to improve the contact heat transfer heat between the star sensor hood and the star sensor head. resistance; the S781 ...

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Abstract

The invention discloses an illumination-full-adaptation heat control device of a star tracker. The illumination-full-adaptation heat control device comprises F46 silver-plated second surface mirrors,a polyimide heat insulation pad, S781 white paint, an electric heater and a low-temperature multilayer assembly, wherein the F46 silver-plated second surface mirrors are attached to the outer surfaceof a baffle of the star tracker and the outer surface of a head of the star tracker except the outer surface with the back to the opening direction of the baffle; the polyimide heat insulation pad ismounted between the baffle of the star tracker and the head of the star tracker; the S781 white paint is sprayed on the outer surface of a support frame of the star tracker and used for providing a low-temperature mounting boundary for the head of the star tracker; the electric heater is attached to the outer surface, with the back to the opening direction of the baffle, of the head of the star tracker; and the low-temperature multilayer assembly is wrapped around the outer surface, with the back to the opening direction of the baffle, of the head of the star tracker. The illumination-full-adaptation heat control device of the star tracker is capable of solving the problem of on-orbit temperature control of the head of the star tracker and realizing full adaptation to illumination, and hasthe beneficial effects of high temperature-control capability, simple system, high reliability, high design adaptability and the like.

Description

technical field [0001] The invention relates to the technical field of satellite overall control, in particular to a star sensor illumination fully adaptive thermal control device. Background technique [0002] The star sensor is an important stand-alone unit of the satellite attitude and orbit control system. The operating temperature of the star sensor is generally required to be between -30°C and +30°C. However, since the star sensor is installed outside the star, it will be affected by the complicated heat flow outside the orbit. The traditional star sensor thermal control design generally requires the star sensor to be installed on the back side of the satellite, which has high constraints on the satellite orbit and layout. . Contents of the invention [0003] In order to improve the adaptability of the above-mentioned star sensor to the installation layout and the external heat flow environment, the present invention provides a star sensor light fully adaptive the...

Claims

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Application Information

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IPC IPC(8): B64G1/24B64G1/58
CPCB64G1/24B64G1/58
Inventor 杨剑刘炜葳程梅苏王彦陈彬彬康奥峰胡炳亭
Owner SHANGHAI SATELLITE ENG INST
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