In-Situ Metrology of Large Segmented Detector Based on Modified Optical Truss

doi:10.1109/JPHOT.2023.3262802

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	In-Situ Metrology of Large Segmented Detector Based on Modified Optical Truss
	Q. An, H. Zhang, X. Wu, J. Wang, T. Chen, J. Zhang and H. Li
	2023
发表期刊	IEEE Photonics Journal
ISSN	19430655
卷号	15 期号:2
摘要	To precisely map cosmic structures and capture time-domain events, future large survey telescopes will be equipped with segmented detectors that greatly expand their field of view. Segment flatness and assembly accuracy will be essential for them to make accurate observations. Instead of physically measuring distances between adjacent mirror surfaces, our modified optical truss enables the angle (slope) between them to be calculated. Furthermore, we calculated the relative tilt and piston between the segmented detectors. The modified optical truss can measure the flatness of a mosaicked detector before and after it is assembled into a telescope. We reduced the volume, weight, and power of our device compared with earlier versions. Its angular accuracy is now better than 0.1 arcsecs, and, at a maximum scope of 500 μm, the linear accuracy of the new truss is better than 25 μm. In fact, accuracy and testing ranges are comparable to instruments found in optics labs. © 2009-2012 IEEE.
DOI	10.1109/JPHOT.2023.3262802
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67321
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Q. An, H. Zhang, X. Wu, J. Wang, T. Chen, J. Zhang and H. Li. In-Situ Metrology of Large Segmented Detector Based on Modified Optical Truss[J]. IEEE Photonics Journal,2023,15(2).
APA	Q. An, H. Zhang, X. Wu, J. Wang, T. Chen, J. Zhang and H. Li.(2023).In-Situ Metrology of Large Segmented Detector Based on Modified Optical Truss.IEEE Photonics Journal,15(2).
MLA	Q. An, H. Zhang, X. Wu, J. Wang, T. Chen, J. Zhang and H. Li."In-Situ Metrology of Large Segmented Detector Based on Modified Optical Truss".IEEE Photonics Journal 15.2(2023).

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