高轨卫星大型光学载荷真空热试验设备研制

Development of Thermal Vacuum Test Facility for The Large Optical Payloads of HEO Satellites

摘要: 为满足某高轨卫星大型光学载荷真空热试验需求，研制了一套大型真空热试验设备，代号Y1H。该设备为卧式组合体结构，配备我国目前空间环境下最大的准直型太阳模拟器，有效光束直径为2 m，有效试验尺寸为φ6 m×6.5 m，极限真空度优于3×10^-5Pa，热沉温度低于100 K。概要介绍了该试验设备的研制方案及特点。

Abstract: Athermal vacuum test facility,named Y1H,was developed by Shanghai Institute of Spacecraft Equipment,to meet the thermal test requirement of large optical payloads of HEO satellites.The Y1H facility has a φ2m solar simulator,which is the largest collimation solar simulator of China in space environment.Y1H includes two chambers with a horizontal combination structure,and the effective size of the main chamber is φ6m×6.5 m.The ultimate vacuum is better than 3×10^-5Pa,and the temperature of thermal shroud is better than 100 K.This paper briefly introduces technical specifications and structure configuration of the Y1H facility.