空间光学遥感器热平衡试验装置的设计

摘要

Thermal equilibrium experiment is an important experiment item in developing space optical remote sensors. It is essential to create a ground simulative environment which is required to be equivalent with that of actual space high vacuum and ultra-lower temperature. In term of experiment requirements of space optical remote sensors, the thermal equilibrium experiment will be implemented under the condition of simulation in connection with space vacuum, orbit external thermal flux, and thermal boundary. It is concerned with orbit parameters, structures, properties of material and its surface, calculation of orbit external thermal flux, simulation of orbit external thermal flux, space vacuum, thermal boundary status, thermal computation, and thermal design, etc. On the basis of research on above factors, a sort of device of thermal equilibrium experiment of space optical remote sensors is schemed out and presented, meanwhile, its structure design is made employing software AutoCAD. Consequently, the conformation, characteristics and design method of this device are described.%热平衡试验是空间光学遥感器研制中的重要试验内容。需要创造一个地面模拟试验环境和条件，来代替空间高真空和超低温的环境。按照试验规范，在模拟真空冷黑、空间外热流和热边界条件下对空间光学遥感器系统进行热平衡试验。这项技术涉及到试验对象的轨道参数、结构、材料表面特性、轨道外热流计算、轨道外热流模拟、真空冷黑、热边界条件、热计算和热设计等因素。在对上述各项因素综合研究的基础上，提出了用于空间光学遥感器热平衡试验的装置，并用AutoCAD软件完成了其结构设计。简述了该试验装置的构造、特点和设计方法。