A surface shape test method for a thin flat mirror
文献类型：期刊论文
| 作者 | Guo, Yongwei1,2,3,4
|
| 刊名 | OPTIK
 |
| 出版日期 | 2018 |
| 卷号 | 152页码:116-126 |
| 关键词 | Surface Measurements Instrumentation Figure Measurement And Metrology Testing Space Instrumentation |
| DOI | 10.1016/j.ijleo.2017.09.049 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000418624500016 |
| 资助机构 | 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) |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/20335]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observat, Key Lab Opt Astron, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Space Astron & Technol, Beijing 100012, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & SpaceSci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, South Amer Ctr Astron, Camino El Observat 1515, Santiago, Chile |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：国家天文台
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