摘要
温度是影响地基大口径光电望远镜性能的重要因素之一。望远镜系统的任一环节存在过大温差或者温度梯度,都会降低望远镜的成像精度和跟踪性能。为了提高望远镜系统在工作时的性能和稳定性,需要对其进行全面的热控分析和设计。从望远镜防护圆顶内的环境温度控制、跟踪架结构的温度控制以及望远镜主镜温度控制等多方面入手,对各个环节进行了热控方法的研究和论述。针对所有环节中各种不同的结构形式都给出了详细的热控设计方案。这些措施可以很好地保持望远镜系统温度与外界环境温度相平衡,解决温度对整个望远镜系统的影响。该研究结果对于大口径望远镜的热控设计有一定的参考价值。
Temperature is one of the most important factors on ground-based large EO telescopes. Large temperature difference or temperature gradient in any parts of the telescope system would result in image and tracking degradation of telescopes. In order to improve the telescope stability and its operating performance, a comprehensive thermal analysis and design is necessary. The study and discussion for telescope thermal control methods were proceeded in terms of environmental temperature control in telescope protective enclosure, telescope mount structure temperature control and telescope primary mirror temperature control etc. Detailed thermal control schemes for every kind of struture in all segments were given. The balance between telescope system temperature and ambinent temperature was well kept via these control methods,, and the bad effects on the whole telescope system caused by temperature were completely solved via these methods. The research results have important referential value for large telescope＇s thermal control design.
出处
《红外与激光工程》
EI
CSCD
北大核心
2012年第10期2774-2778,共5页
Infrared and Laser Engineering
基金
中国科学院长春光学精密机械与物理研究所三期创新重大研究项目专项资金
关键词
望远镜
热控
防护圆顶
跟踪架
主镜
telescope
thermal control
protective enclosure
mount structure
primary mirror
