| 基于线阵CCD的迈克耳孙干涉仪条纹计数器 |
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| 引用本文： | 陈玉林,马龙,顾斌,徐林华.基于线阵CCD的迈克耳孙干涉仪条纹计数器[J].物理实验,2012(2):21-24. |
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| 作者姓名： | 陈玉林 马龙 顾斌 徐林华 |
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| 作者单位： | 南京信息工程大学数理学院 |
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| 基金项目： | 南京信息工程大学“示范中心实验教学师资队伍建设的研究与实践”教改工程资助项目(No.N1885011115) |
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| 摘 要： | 通过CCD图像传感器对光干涉信号进行捕捉与采集,并将捕捉信号送至ARM微控制器,利用芯片内部的A/D转换单元将模拟信号转换成数字信号,然后对数字信号进行分析、变换、测量处理,将干涉图像、干涉环变换方向及计数结果显示在液晶屏上,该方法消除了人工记录干涉圆环数目时因疲劳而产生的计数误差,提高了测量精度.
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| 关 键 词： | CCD 迈克耳孙干涉仪 计数器 |
CCD linear fringe counter for Michelson interferometer |
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| CHEN Yu-lin,MA Long,GU Bin,XU Lin-hua.CCD linear fringe counter for Michelson interferometer[J].Physics Experimentation,2012(2):21-24. |
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| Authors: | CHEN Yu-lin MA Long GU Bin XU Lin-hua |
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| Institution: | (College of Mathematic and Physics,Nanjing University of Information Science and Technology,Nanjing 210044,China) |
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| Abstract: | Using CCD image sensor to capture and collect the optical interference signal and on-chip A/D conversion module of ARM micro-controller to convert analog signals into digital signals,the interference fringes were digitized and analyzed.The interference pattern,the moving direction of interference rings and the counting numbers were displayed on a LCD screen.This method eliminated the error caused by manually recording the number of interference rings and improved the measurement accuracy. |
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| Keywords: | CCD Michelson interferometer counter |
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