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A surface shape test method for a thin flat mirror
Guo, Yongwei1,2,3,4
2018
发表期刊OPTIK
卷号152页码:116-126
摘要An optical test method of the surface shape for very thin flat mirrors is presented and discussed. The effect of gravity on the mirror shape is greatly reduced by floating the mirror on water while the surface is measured using a Zygo interferometer. The floating mirror is supported by the buoyant force and surface tension. Mechanical analysis and error analysis show that the tested flat mirror can be considered as a rim supported mirror with a reduced gravity. The surface error caused by the rim constraint can be rather small because of the reduced effective gravity. The surface error of a flat mirror which is Phi 102 mm, 0.6 mm thick was tested using this method. The results were compared to the method successfully used for the Hinode project. The Hinode method supports the mirror at three points and measures the surface for both the mirror facing up and facing down. The average of the face up and face down measurements yields the zero gravity shape. The test results including the surface error and the fringe of the surface shape by these two methods were in good agreement. Compared to the Hinode method, the method can be carried on before the mirror's coating and can to be employed during the polishing process. (C) 2017 The Author. Published by Elsevier GmbH.
文章类型Article
关键词Surface Measurements Instrumentation Figure Measurement And Metrology Testing Space Instrumentation
WOS标题词Science & Technology ; Physical Sciences
资助者National Natural Science Foundation of China(11373046) ; National Natural Science Foundation of China(11373046) ; National Natural Science Foundation of China(11373046) ; National Natural Science Foundation of China(11373046)
DOI10.1016/j.ijleo.2017.09.049
收录类别SCI
语种英语
资助者National Natural Science Foundation of China(11373046) ; National Natural Science Foundation of China(11373046) ; National Natural Science Foundation of China(11373046) ; National Natural Science Foundation of China(11373046)
WOS研究方向Optics
WOS类目Optics
WOS记录号WOS:000418624500016
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/20335
专题空间科学研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Space Astron & Technol, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Natl Astron Observat, Key Lab Opt Astron, Beijing 100012, Peoples R China
3.Chinese Acad Sci, South Amer Ctr Astron, Camino El Observat 1515, Santiago, Chile
4.Univ Chinese Acad Sci, Sch Astron & SpaceSci, Beijing 100049, Peoples R China
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GB/T 7714
Guo, Yongwei. A surface shape test method for a thin flat mirror[J]. OPTIK,2018,152:116-126.
APA Guo, Yongwei.(2018).A surface shape test method for a thin flat mirror.OPTIK,152,116-126.
MLA Guo, Yongwei."A surface shape test method for a thin flat mirror".OPTIK 152(2018):116-126.
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