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利用法拉第效应进行永磁体磁场二维光学成像

2D Optical Imaging of Magnetic Field for Permanent Magnets by Faraday Effect
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摘要 借助于法拉第磁致旋光效应,以ZF6玻璃为磁旋光介质,设计了适当的光学系统,对永磁体磁极附近磁场的分布进行了光学二维成像.利用自编的图像采集软件采集了一系列原始图片,并利用自编的图像处理软件对这些原始图片进行了处理,完成了检偏过程.分别得到了透射成像方式和反射成像方式下永磁体磁场的分布图像,这些图像正确反映了永磁体磁场的实际分布.本研究工作为宏观尺度磁场的观测与测量提供了一种有效的手段. Based on the Faraday magneto-optical effect,2D optical imaging of magnetic field of the permanent magnets is carried out using an applicable optical system with the ZF6 glass as the magneto-optic medium.Original pictures are acquired using a self-programmed software,and processed using a self-programmed image processing software,thus polarization analysis is completed.The permanent magnet field distribution images are obtained under the transmission imaging and the reflection imaging respectively.These images reflect the actual magnetic field distribution.This experiment provides an effective means for observation and measurement of macroscopic magnetic field.
作者 李淑慧 李小俊 郭慧爽
机构地区 西安邮电大学 西北大学光子学与光子技术研究所 石家庄邮电职业技术学院
出处 《光子学报》 EI CAS CSCD 北大核心 2013年第3期373-378,共6页 Acta Photonica Sinica
基金 陕西省教育厅科研计划项目(Nos.08JZ68 2010JS111 12JK0519)资助
关键词 物理光学 磁场图像 光学成像 法拉第效应 Physical optics Magnetic field image Optical imaging Faraday effect
分类号 O436.4 [机械工程—光学工程] TP391.9 [自动化与计算机技术—计算机应用技术]
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参考文献18

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光子学报
2013年 第3期

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