空间太阳望远镜主光学望远镜内遮光罩热效应

发布时间：2018-04-22 03:41

  本文选题：内遮光罩 + GCF　； 参考：《红外与激光工程》2013年11期

【摘要】：空间太阳望远镜(Space Solar Telescope,SST)主光学望远镜(Main Optical Telescope,MOT)口径达1 m,以2.8′×1.5′有效视场对日成像,将获得0.1″~0.15″的图像。SST MOT对日观测时所接收到的热量超过千瓦,成为影响望远镜成像质量的主要热源和杂散光源。为此,文中首先探讨了大口径太阳望远镜热设计与消杂光设计的特殊关联。然后,针对主镜筒内消杂散光的内遮光罩结构提出了热兼容设计,确定了内遮光罩结构热-杂散光效应集成设计的目标与评价体系。借助热分析软件获取SST MOT因内遮光罩结构参数变化引起的系统温度的变化趋势,从热控角度对内遮光罩结构的设计提出了建议:内遮光罩结构的垂直高度不宜超过400 mm。探索的内遮光罩结构热-杂散光效应集成分析方法也可为其他太阳望远镜的综合优化提供参考。
[Abstract]:Space Solar TelescopeSSTS (main Optical TelescopeSST) has a aperture of 1 m.The diurnal imaging with an effective field of view of 2.8'脳 1.5 'will result in an image of 0.1 "0. 15". The SST MOT will receive more than kW of heat when it observes the day. It has become the main heat source and stray light source affecting the imaging quality of telescope. For this reason, the special relationship between the thermal design of the large aperture solar telescope and the design of eliminating stray light is first discussed in this paper. Then, the thermal compatibility design of the inner light mask structure of the primary mirror tube is proposed, and the objective and evaluation system of the integrated design of the thermal stray light effect of the inner light mask structure are determined. With the help of the thermal analysis software, the change trend of the system temperature caused by the variation of the structure parameters of the SST MOT is obtained. From the point of view of thermal control, the design of the inner mask structure is suggested: the vertical height of the inner shade structure should not exceed 400mm. The integrated analysis method of the thermal and stray light effect of the inner shade structure can also be used as a reference for the integrated optimization of other solar telescopes.
【作者单位】： 杭州电子科技大学机械学院;中国科学院国家天文台;
【基金】：国家自然科学基金(11303007) 浙江省自然科学基金(LQ13E060004) 中国科学院太阳活动重点实验室开放课题(KLSA201315)
【分类号】：TH751
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本文编号：1785469