Angle measurement based on in-line digital holographic reconstruction

doi:10.1016/j.optlaseng.2020.106385

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	Angle measurement based on in-line digital holographic reconstruction
	H. Yu
	2021
发表期刊	Optics and Lasers in Engineering
ISSN	1438166
卷号	137
摘要	Using digital holography technology to reconstruct the optical information of the calibrated grating, the grating pattern can be magnified without an optical lens. This greatly reduces the volume and complexity of the image angular displacement measurement device. This paper proposes an angular displacement measurement technology based on in-line digital holographic reconstruction. The wavefront recording of the calibrated grating holographic interference fringes can be realized in a small volume; the wavefront is reconstructed via algorithm, then the coded information on the calibrated grating is recognized based on the reconstructed light wave. The recognition and angle calculation of coded lines was successful in an experiment on 1024 period calibrated circular gratings, and 1.24 measurement resolution is achieved by the subdivision algorithm. This study may represent a workable foundation for future small-volume and high-resolution angular displacement measurement technology. 2020 Elsevier Ltd
DOI	10.1016/j.optlaseng.2020.106385
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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/181722/65054
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	H. Yu. Angle measurement based on in-line digital holographic reconstruction[J]. Optics and Lasers in Engineering,2021,137.
APA	H. Yu.(2021).Angle measurement based on in-line digital holographic reconstruction.Optics and Lasers in Engineering,137.
MLA	H. Yu."Angle measurement based on in-line digital holographic reconstruction".Optics and Lasers in Engineering 137(2021).

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