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题名: Improving the accuracy of mirror measurements by removing noise and lens distortion
作者: Wang ZZ(王振洲)
作者部门: 机器人学研究室
通讯作者: 王振洲
关键词: measurement ; one-shot projection ; telescope mirror ; ray modeling ; pattern modeling ; interferometer
刊名: Measurement Science and Technology
ISSN号: 0957-0233
出版日期: 2016
卷号: 27, 期号:11, 页码:1-9
收录类别: SCI ; EI
产权排序: 1
摘要: Telescope mirrors determine the imaging quality and observation ability of telescopes. Unfortunately, manufacturing highly accurate mirrors remains a bottleneck problem in space optics. One main factor is the lack of a technique for measuring the 3D shapes of mirrors accurately for inverse engineering. Researchers have studied and developed techniques for testing the quality of telescope mirrors and methods for measuring the 3D shapes of mirrors for centuries. Among these, interferometers have become popular in evaluating the surface errors of manufactured mirrors. However, interferometers are unable to measure some important mirror parameters directly and accurately, e.g. the paraxial radius, geometry dimension and eccentric errors, and these parameters are essential for mirror manufacturing. In this paper, we aim to remove the noise and lens distortion inherent in the system to improve the accuracy of a previously proposed one-shot projection mirror measurement method. To this end, we propose a ray modeling and a pattern modeling method. The experimental results show that the proposed ray modeling and pattern modeling method can improve the accuracy of the one-shot projection method significantly, making it feasible as a commercial device to measure the shapes of mirrors quantitatively and accurately.
语种: 英语
WOS记录号: WOS:000385929400003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/19288
Appears in Collections:机器人学研究室_期刊论文

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Recommended Citation:
Wang ZZ. Improving the accuracy of mirror measurements by removing noise and lens distortion[J]. Measurement Science and Technology,2016,27(11):1-9.
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