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Linearity calibration platform of capacitive sensors
Zhang, D.-F.; C. Ge; X.-L. Li; M.-Y. Ni and K. Guo
2016
发表期刊Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号24期号:1
摘要We present a simplified solution to phase diversity when the observed object is a point source. It utilizes an iterative linearization of the point spread function (PSF) at two or more diverse planes by first-order Taylor expansion to reconstruct the initial wavefront. To enhance the influence of the PSF in the defocal plane which is usually very dim compared to that in the focal plane, we build a new model with the Tikhonov regularization function. The new model cannot only increase the computational speed, but also reduce the influence of the noise. By using the PSFs obtained from Zemax, we reconstruct the wavefront of the Hubble Space Telescope (HST) at the edge of the field of view (FOV) when the telescope is in either the nominal state or the misaligned state. We also set up an experiment, which consists of an imaging system and a deformable mirror, to validate the correctness of the presented model. The result shows that the new model can improve the computational speed with high wavefront detection accuracy. (C) 2016 Optical Society of America
文章类型期刊
收录类别EI
语种中文
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/57407
专题中科院长春光机所知识产出
推荐引用方式
GB/T 7714
Zhang, D.-F.,C. Ge,X.-L. Li,et al. Linearity calibration platform of capacitive sensors[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2016,24(1).
APA Zhang, D.-F.,C. Ge,X.-L. Li,&M.-Y. Ni and K. Guo.(2016).Linearity calibration platform of capacitive sensors.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,24(1).
MLA Zhang, D.-F.,et al."Linearity calibration platform of capacitive sensors".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 24.1(2016).
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