Position resolution of quadrant detector for uniform spot

	Position resolution of quadrant detector for uniform spot
	Chen, Y.-S.
	2015
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	23 页码:112-118
摘要	To precisely analyze the performance of a position detecting system based on a quadrant detector (QD), the main factors affecting QD position resolution for a uniform spot model were studied. The basic principle of the QD position detection was firstly analyzed. Based on the approximation formula of spot position and according to the error theory, an approximate mathematical model was derived to characterize the relationship between the position resolution and the beam radius, the spot centroid position and the total signal to noise ratio. Finally, an experimental system was designed to verify the validity of the mathematical model. The research results show that the estimation error of position resolution using the mathematical model is about 12% for various radii when the distance between the center of QD and the position of spot is in a half radius range and the total signal to noise ratio is 63.04 dB. Furthermore, the mathematical model could exactly and directly estimate the position resolution of detection system of the QD, which brings great convenience to engineering applications. 2015, Chinese Academy of Sciences. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56017
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Chen, Y.-S.. Position resolution of quadrant detector for uniform spot[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23:112-118.
APA	Chen, Y.-S..(2015).Position resolution of quadrant detector for uniform spot.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23,112-118.
MLA	Chen, Y.-S.."Position resolution of quadrant detector for uniform spot".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23(2015):112-118.

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