航天器环境工程2024，Vol.41Issue(2)：160-166,7.DOI:10.12126/see.2023122
星载高精度偏振扫描仪热控设计与验证
Thermal control design and verification of satellite-borne high-precision polarization scanner
摘要
Abstract
The polarization scanner is mounted on the satellite floor and surrounded by multiple other loads.Therefore,due to its complex thermal environment,it is of difficulty for satellite thermal control design.According to the thermal control requirements for each component of the scanner,a thermal control scheme was designed in this paper.The scheme includes:ensuring the insulation between main optics and the frame together with multiple layers of insulation components cladded;introducting independent heat dissipation paths for the infrared detector heat sink and the head circuit box,respectively,with an external heat pipe connected to the auxiliary heat dissipation panel;inplementing active temperature control electric heating;installing heat insulation pads in key areas.The thermal control scheme has passed the ground-based thermal balance test.Orbital telemetry data show that the temperature of the main optics is controlled at(16±1)℃,the temperature of the head circuit box is controlled between 6℃and 8℃,while the temperature of the infrared detector heat sink is controlled at(-22±1)℃:those all meeting the temperature requirements of the scanner.The above indicates that the thermal control scheme is reasonable and effective,which may provide a reference for the thermal control design and optimization of optics payloads of similar types.关键词
高精度偏振扫描仪/热控设计/热仿真/热试验/在轨飞行Key words
high-precision polarization scanner/thermal control design/thermal simulation/thermal test/in-orbit flight分类
航空航天引用本文复制引用
桂利佳,张维丝,徐文杰,高洪达,李言青,凌明椿..星载高精度偏振扫描仪热控设计与验证[J].航天器环境工程,2024,41(2):160-166,7.基金项目
国家重点研发计划项目(编号:2022YFB3903203-2) （编号:2022YFB3903203-2）
