SIMULATION SUCCESS STORIES

SRON Develops Thermal Calibration System for Deep-Space Telescope

航空航天与国防安全

C. de Jonge
SRON, Netherlands

外太空望远镜需要超灵敏探测器和校准才能接收弱远红外信号。远红外仪器(SAFARI),一种将登上宇宙学及天体物理学用宇宙学与天体物理空间红外望远镜(SPICA),其具有测量远红外光谱的传感器。SAFARI 系统包括一个辐射源,用于校准,但辐射源非常强大,完全超出了读数范围。这样热管理即成为一个非常重要的考虑因素,因为传感器必须保持在低温条件下。不锈钢悬垂绳会将辐射源固定到一个悬架系统,从而防止它接触其他设备,减少热传递和振动。荷兰 SRON 空间研究院的设计工程师 Chris de Jonge 采用了 COMSOL Multiphysics 软件辅助设计这个隔热悬架系统。他还利用自己的 COMSOL 仿真结果,优化校准系统内部光圈和快门机械的几何结构,同时开发最佳线圈设计并将电流和散热减至最低。

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