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Proceedings Paper

Active thermal control for the 1.8-m primary mirror of the solar telescope CLST
Author(s): Yangyi Liu; Naiting Gu; Cheng Li; Yuntao Cheng; Benxi Yao; Zhiyong Wang; Changhui Rao
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Paper Abstract

The 1.8-m primary mirror of solar telescope is heated by the solar radiation and introduce harmful mirror seeing degrading the imaging quality. For the Chinese Large Solar Telescope (CLST), the thermal requirement based on the quantitative evaluation on mirror seeing effect shows that the temperature rise on mirror surface should be within 1 kelvin. To meet the requirement, an active thermal control system design for the CLST primary mirror is proposed, and realized on the subscale prototype of the CLST. The experimental results show that the temperature on the mirror surface is well controlled. The average and maximum thermal controlled error are less than 0.3 and 0.7 kelvins respectively, which completely meets the requirements.

Paper Details

Date Published: 27 July 2016
PDF: 10 pages
Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99061C (27 July 2016); doi: 10.1117/12.2231854
Show Author Affiliations
Yangyi Liu, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
The Univ. of Chinese Academy of Sciences (China)
Naiting Gu, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
Cheng Li, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
Yuntao Cheng, Institute of Optics and Electronics (China)
Benxi Yao, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
The Univ. of Chinese Academy of Sciences (China)
Zhiyong Wang, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
The Univ. of Chinese Academy of Sciences (China)
Changhui Rao, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)


Published in SPIE Proceedings Vol. 9906:
Ground-based and Airborne Telescopes VI
Helen J. Hall; Roberto Gilmozzi; Heather K. Marshall, Editor(s)

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