Enhancing the measurement stability of segmented mirror edge height through synchronous measurement in atmospheric turbulence
文献类型：期刊论文
| 作者 | Wang B(王斌)2 ; Wang XQ(王希群)2; Wang QK(王焌珂)2,3; Dai YC(戴懿纯)2; Wang KY(王昆延)2,3; Tan X(谭旭)2,3; Yang H(杨慧)2,3; Yang, Dehua4; Wu, Changcheng1; Xu FY(许方宇)2
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| 刊名 | OPTICS EXPRESS
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| 出版日期 | 2025-06-02 |
| 卷号 | 33期号:11页码:22699-22710 |
| ISSN号 | 1094-4087 |
| DOI | 10.1364/OE.555887 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | Optical interference phase measurement is a crucial technology for measuring the edge height of segments during the co-phased adjustment stage of giant astronomical telescopes equipped with segmented primary mirrors. For the Chinese Giant Solar Telescope (CGST), achieving optical interferometric measurements with a range of 10 mu m or more is a critical challenge that must be addressed to integrate the the co-focus and phasing adjustment processes. Given the unique requirements of solar observation, CGST intends to implement multi-wavelength technology to tackle the measurement range issue. However, this multi-wavelength measurement approach encounters the problem of edge jumps, and merely extending the exposure time does not effectively resolve this issue, which could compromise the telescope's diffraction-limited observational capabilities. The study indicates that the relative measurement error between two wavelengths, caused by atmospheric turbulence, is the primary factor leading to edge jumps. To address this issue, the paper proposes a dual-wavelength synchronous measurement technique. An experiment conducted on a segmented-mirror system demonstrates that, under turbulent conditions and with an exposure time of one second, the probability of edge jumps is negligible. By employing dual-wavelength synchronous technology, each measurement and adjustment takes only a few seconds, allowing the co-phased adjustment of CGST to be completed in just two to three rounds of measurement and adjustment. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement |
| 学科主题 | 天文学 |
| URL标识 | 查看原文 |
| 出版地 | 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
| WOS关键词 | KECK TELESCOPES ; PERFORMANCE ; SENSOR |
| 资助项目 | Yunnan Revitalization Talent Support Program[202305AS350029]; Yunnan Revitalization Talent Support Program[202305AT350005]; Yunnan Provincial Science and Technology Department[202401AU070062]; Yunnan Provincial Science and Technology Department[202305AH340002]; Yunnan Provincial Science and Technology Department[202103AD150013]; National Natural Science Foundation of China[12273109]; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009] |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:001513703500008 |
| 出版者 | Optica Publishing Group |
| 资助机构 | Yunnan Revitalization Talent Support Program[202305AS350029, 202305AT350005] ; Yunnan Provincial Science and Technology Department[202401AU070062, 202305AH340002, 202103AD150013] ; National Natural Science Foundation of China[12273109] ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009] |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28332]  |
| 专题 | 天文技术实验室 |
| 作者单位 | 1.Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China; 3.University of Chinese Academy of Sciences, Beijing, 100049, China; 4.Nanjing Institute of Astronomical Optics and Technology, Chinese Academy of Sciences, Nanjing, 210042, China; |
| 推荐引用方式 GB/T 7714 | Wang B,Wang XQ,Wang QK,et al. Enhancing the measurement stability of segmented mirror edge height through synchronous measurement in atmospheric turbulence[J]. OPTICS EXPRESS,2025,33(11):22699-22710. |
| APA | 王斌.,王希群.,王焌珂.,戴懿纯.,王昆延.,...&金振宇.(2025).Enhancing the measurement stability of segmented mirror edge height through synchronous measurement in atmospheric turbulence.OPTICS EXPRESS,33(11),22699-22710. |
| MLA | 王斌,et al."Enhancing the measurement stability of segmented mirror edge height through synchronous measurement in atmospheric turbulence".OPTICS EXPRESS 33.11(2025):22699-22710. |
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来源：云南天文台
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