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Alternative TitleNVST Derocus-Detect System
李鹏飞1,2; 鞠青华1; 方玉亮1,2; 柳光乾1
Source Publication天文研究与技术(Astronomical Research & Technology)
Contribution Rank第1完成单位
Indexed ByCSCD
Keyword焦点探测 1m新真空太阳望远镜 焦点实时变化 重复移动精度


Other Abstract

During the continuous observation in 1-meter New Vacuum Solar Telescope,the solar radiation changes the temperature of the telescope surface,resulting in the thermal deformation on the optical and mechanical structure of the telescope. This results in real-time variation of the telescope focus,which produces the defocus aberration in the observation data. Thus it is of importance for the observation to detect and correct the defocus. This paper describes the design and implementation of a defocus-detect system,based on the optical and mechanical structure of this telescope,and the scanning defocus-detect algorithm is used. Firstly, the variation of defocus causing by temperature change is analyzed and the overall design of the defocus-detect system is given. Then the detailed design and implementation of its hardware and software system is described,subsequently the test results of the repeat position precision and detect error show that this defocus-detect system meets the requirement of the observation. At the last part of this paper,the performance of this system on the telescope with 3-months continuous observation is displayed. And it shows that this system can detect and correct the real-time variation of the telescope defocus,and has a positive influence on the quality of the observation data.

Funding Project国家自然科学基金[U1631126] ; 国家自然科学基金[11101077]
Funding Organization国家自然科学基金[U1631126, 11101077]
Subject Area天文学 ; 太阳与太阳系 ; 太阳与太阳系其他学科 ; 天文学其他学科
MOST Discipline Catalogue理学 ; 理学::天文学
Citation statistics
Document Type期刊论文
2.中国科学院大学, 北京,100049
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
李鹏飞,鞠青华,方玉亮,等. NVST焦点探测系统[J]. 天文研究与技术(Astronomical Research & Technology),2017,14(4):502-510.
APA 李鹏飞,鞠青华,方玉亮,&柳光乾.(2017).NVST焦点探测系统.天文研究与技术(Astronomical Research & Technology),14(4),502-510.
MLA 李鹏飞,et al."NVST焦点探测系统".天文研究与技术(Astronomical Research & Technology) 14.4(2017):502-510.
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