摘要
某空间光谱成像仪光谱范围覆盖可见光、中短波红外、长波红外等多个谱段,配置多台视频处理器和脉冲管制冷机,在狭小空间内形成了复杂的内热源分布。由于上述内热源总热耗高达数百瓦,而制冷机更有低于10℃的控温要求,导致成像仪散热面面积需求很大,同时也造成成像仪功耗资源紧张。文章基于热管理理念,对成像仪内热源进行热设计,使排散废热和控温所用能量最大程度减小,在控制散热面面积的同时节省主动控温功耗,较为圆满地解决了成像仪内热源热设计难题。
A space spectral imager includes three video processors and two pulse tube cryocoolers.While the total peak heat consumption of these calorigenic equipment reach 362 watts,the maximum temperature for the two pulse tube cryocoolers has to be less than 10~C .The radiator surface needed for heat dissipation is very large,and at the same time the electric power for heaters is limited. In this paper, some thermal control methods are designed based on thermal management concept to make radiator area of calorigenic equipments as small as possible and save electric power for heaters. The difficult problems on thermal design ofcalorigenic equipment are solved.
出处
《航天返回与遥感》
2012年第6期80-85,共6页
Spacecraft Recovery & Remote Sensing
