Diffraction analysis for digital micromirror device scene projectors in the long-wave infrared

	Diffraction analysis for digital micromirror device scene projectors in the long-wave infrared
	Han, Q.; J. Wang; J. Z. Zhang and Q. Sun
	2016
发表期刊	Optical Engineering
卷号	55 期号:8
摘要	The calibration of the tertiary mirror of the Thirty Meter Telescope, also known as the giant science steering mirror (GSSM), is a step of great significance during its testing process. Systematic, drift, and random errors constitute the major limitations to the accuracy of the calibration measurements. In this article, we estimated the errors in the calibration of the GSSM with a laser tracker. For the systematic error, a measurement strategy based on the standard bar method was successfully designed and applied. At the same time, we can distinguish between the drift and random errors by means of a correlation analysis. The systematic error, which depends strongly on the configuration of the system formed by the GSSM and the laser tracker, was estimated to be 20 mu m for the GSSM prototype. The random error, averaging 15 min, was about 4 mu m. The correlation coefficients among three different noise measurements are all lower than 0.1, which indicates that the noise is dominated by random errors. Finally, the error can be sufficiently suppressed by rearranging the position of the spherically mounted retroreflectors. The result shows that the accuracy of the measurement can be improved by 21.4% with the new arrangement method. (C) 2016 Optical Society of America
文章类型	期刊
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56951
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Han, Q.,J. Wang,J. Z. Zhang and Q. Sun. Diffraction analysis for digital micromirror device scene projectors in the long-wave infrared[J]. Optical Engineering,2016,55(8).
APA	Han, Q.,J. Wang,&J. Z. Zhang and Q. Sun.(2016).Diffraction analysis for digital micromirror device scene projectors in the long-wave infrared.Optical Engineering,55(8).
MLA	Han, Q.,et al."Diffraction analysis for digital micromirror device scene projectors in the long-wave infrared".Optical Engineering 55.8(2016).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Diffraction analysis（593KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载