太阳望远镜的倒锥导流式热光阑研制

张雨辰; 王飞翔; 许方宇; 黄善杰; 谭旭; 路文龙; 肖建国; 贾钰超; 罗宏

doi:10.3788/CO.2019-0139

Volume 13 Issue 3

Jun. 2020

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Article Contents

Chinese Optics > 2020 > 13(3): 586-594.

ZHANG Yu-chen, WANG Fei-xiang, XU Fang-yu, HUANG Shan-jie, TAN Xu, LU Wen-long, XIAO Jian-guo, JIA Yu-chao, LUO Hong. Development of the inverted-cone diversion type heat-stop for solar telescopes[J]. Chinese Optics, 2020, 13(3): 586-594. doi: 10.3788/CO.2019-0139

Citation:

ZHANG Yu-chen, WANG Fei-xiang, XU Fang-yu, HUANG Shan-jie, TAN Xu, LU Wen-long, XIAO Jian-guo, JIA Yu-chao, LUO Hong. Development of the inverted-cone diversion type heat-stop for solar telescopes[J]. Chinese Optics, 2020, 13(3): 586-594. doi: 10.3788/CO.2019-0139

Citation:

ZHANG Yu-chen, WANG Fei-xiang, XU Fang-yu, HUANG Shan-jie, TAN Xu, LU Wen-long, XIAO Jian-guo, JIA Yu-chao, LUO Hong. Development of the inverted-cone diversion type heat-stop for solar telescopes[J]. Chinese Optics, 2020, 13(3): 586-594. doi: 10.3788/CO.2019-0139

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Development of the inverted-cone diversion type heat-stop for solar telescopes

doi: 10.3788/CO.2019-0139

1.
Yunnan Astronomical Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Yunnan Key Laboratory of Optoelectronic Information Technology, Yunnan Normal University, Kunming 650216, China
4.
Yunnan KIRO-CH Photonics Co. Ltd, Kunming 650217, China

Funds: Supported by National Natural Science Foundation of China (No.11803089, No. 11873091, No.11673064)

More Information

Corresponding author: xu_fangyu@ynao.ac.cn
Received Date: 03 Jul 2019
Rev Recd Date: 20 Aug 2019
Publish Date: 01 Jun 2020

Abstract

Abstract

For large-aperture ground-based open-structure solar telescopes, an increase in heat-stop temperature will result in deterioration of image quality. In particular, heat-stop, located closely to the light-passing hole, has a great influence on image quality. This is one of the problems for the Chinese Giant Solar Telescope (CGST) development plan. For solving the heat-stop temperature control problem, the overall cooling efficiency should be high and further strengthen is implemented at key locations to achieve uniform temperature control. According to the above problem, an Inverted-Cone Diversion Type (ICDT) heat-stop design is proposed, which can reduce the temperature of the light-passing hole and make the hottest area away from the light-passing hole. The simulation results of cooling efficiency and heat-stop temperature field show that this scheme is obviously superior to its predecessor. The temperature of ICDT′s heat-stop is up to 3 ℃ above ambient, which is better than GREGO′s temperature difference of 7 ℃. The research team also carried out the heat-stop temperature field measurement experiment and verified the accuracy of the temperature field simulation′s results showing that ICDT heat-stop design has good temperature control capability.
- heat-stop,
- infrared temperature measurement,
- CGST pre-research,
- diversion type,
- jet impact

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References(15)

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