中国科学院光电技术研究所机构知识库
Advanced  
IOE OpenIR  > 自适应光学技术研究室(八室)  > 期刊论文
题名:
Quantitative evaluation on internal seeing induced by heat-stop of solar telescope
作者: Liu, Yangyi1,2,3; Gu, Naiting1,2; Rao, Changhui1,2
刊名: Optics Express
出版日期: 2015
卷号: 23, 期号:15, 页码:19980-19995
学科分类: Aberrations - Computational fluid dynamics - Fluid dynamics - Geometrical optics - Heat affected zone - Refractive index - Temperature - Thermal variables control - Wavefronts
DOI: 10.1364/OE.23.019980
文章类型: 期刊论文
中文摘要: heat-stop is one of the essential thermal control devices of solar telescope. The internal seeing induced by its temperature rise will degrade the imaging quality significantly. For quantitative evaluation on internal seeing, an integrated analysis method based on computational fluid dynamics and geometric optics is proposed in this paper. Firstly, the temperature field of the heat-affected zone induced by heat-stop temperature rise is obtained by the method of computational fluid dynamics calculation. Secondly, the temperature field is transformed to refractive index field by corresponding equations. Thirdly, the wavefront aberration induced by internal seeing is calculated by geometric optics based on optical integration in the refractive index field. This integrated method is applied in the heat-stop of the Chinese Large Solar Telescope to quantitatively evaluate its internal seeing. The analytical results show that the maximum acceptable temperature rise of heat-stop is up to 5 Kelvins above the ambient air at any telescope pointing directions under the condition that the root-mean-square of wavefront aberration induced by internal seeing is less than 25nm. Furthermore, it is found that the magnitude of wavefront aberration gradually increases with the increase of heat-stop temperature rise for a certain telescope pointing direction. Meanwhile, with the variation of telescope pointing varying from the horizontal to the vertical direction, the magnitude of wavefront aberration decreases at first and then increases for the same heat-stop temperature rise. © 2015 Optical Society of America.
英文摘要: heat-stop is one of the essential thermal control devices of solar telescope. The internal seeing induced by its temperature rise will degrade the imaging quality significantly. For quantitative evaluation on internal seeing, an integrated analysis method based on computational fluid dynamics and geometric optics is proposed in this paper. Firstly, the temperature field of the heat-affected zone induced by heat-stop temperature rise is obtained by the method of computational fluid dynamics calculation. Secondly, the temperature field is transformed to refractive index field by corresponding equations. Thirdly, the wavefront aberration induced by internal seeing is calculated by geometric optics based on optical integration in the refractive index field. This integrated method is applied in the heat-stop of the Chinese Large Solar Telescope to quantitatively evaluate its internal seeing. The analytical results show that the maximum acceptable temperature rise of heat-stop is up to 5 Kelvins above the ambient air at any telescope pointing directions under the condition that the root-mean-square of wavefront aberration induced by internal seeing is less than 25nm. Furthermore, it is found that the magnitude of wavefront aberration gradually increases with the increase of heat-stop temperature rise for a certain telescope pointing direction. Meanwhile, with the variation of telescope pointing varying from the horizontal to the vertical direction, the magnitude of wavefront aberration decreases at first and then increases for the same heat-stop temperature rise. © 2015 Optical Society of America.
收录类别: SCI ; Ei
项目资助者: Hi-Tech Project of China ; National Natural Science Foundation of China [11178004] ; Science and Technology Innovation Talent Project of Sichuan Province [2015104]
语种: 英语
WOS记录号: WOS:000361035300137
ISSN号: 1094-4086
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6429
Appears in Collections:自适应光学技术研究室(八室)_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
2015-2116.pdf(2605KB)期刊论文作者接受稿开放获取View 联系获取全文

作者单位: 1. Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
2. Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, China
3. Graduate University of Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Liu, Yangyi,Gu, Naiting,Rao, Changhui. Quantitative evaluation on internal seeing induced by heat-stop of solar telescope[J]. Optics Express,2015,23(15):19980-19995.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Liu, Yangyi]'s Articles
[Gu, Naiting]'s Articles
[Rao, Changhui]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Liu, Yangyi]‘s Articles
[Gu, Naiting]‘s Articles
[Rao, Changhui]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 2015-2116.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2016  中国科学院光电技术研究所 - Feedback
Powered by CSpace