Small-sized visual angular displacement measurement technology

doi:10.1016/j.measurement.2018.11.055

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	Small-sized visual angular displacement measurement technology
	X.D.Jia; Q.H.Wan; H.Yu; X.R.Lu; C.H.Zhao
	2019
发表期刊	Measurement
ISSN	0263-2241
卷号	135 页码:406-412
摘要	Visual angular displacement measurement methods are a popular approach to photoelectric displacement measurement technology, as they provide significantly higher precision than traditional angular displacement measurement methods. This paper proposes a small-sized high-precision angular displacement measurement technology based on the sub-pixel level varying principle. The small-sized visual angular displacement measurement mechanism is first established without lens near-field imaging. A coding method based on the varying principle is then developed in order to decrease the ruled grating density. A sub-pixel angular displacement calculating model based on uniline pix is built to decrease the pixel data and enhance the frequency response of the measurement system; the corresponding data combination and correction algorithms are proposed. The error analysis is proposed. Tests on an angular displacement measurement device prototype showed a resolution of 20-bit and precision of 20.400. The device also outperformed traditional angular displacement measuring devices of similar size, but features low ruled grating density and miniaturization. The results presented here may thus provide a workable foundation for further research on small-size visual angular displacement measurement devices. (C) 2018 Elsevier Ltd. All rights reserved.
关键词	Image detector,Varying principle,High-precision,High-resolution,optical encoder,high-resolution,sensor,Engineering,Instruments & Instrumentation
DOI	10.1016/j.measurement.2018.11.055
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63308
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	X.D.Jia,Q.H.Wan,H.Yu,et al. Small-sized visual angular displacement measurement technology[J]. Measurement,2019,135:406-412.
APA	X.D.Jia,Q.H.Wan,H.Yu,X.R.Lu,&C.H.Zhao.(2019).Small-sized visual angular displacement measurement technology.Measurement,135,406-412.
MLA	X.D.Jia,et al."Small-sized visual angular displacement measurement technology".Measurement 135(2019):406-412.

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