| Origin软件在普朗克常量测定实验中的应用 |
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| 引用本文： | 杨达晓,唐海燕,杨耀辉.Origin软件在普朗克常量测定实验中的应用[J].大学物理实验,2010,23(5):67-69. |
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| 作者姓名： | 杨达晓 唐海燕 杨耀辉 |
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| 作者单位： | 重庆科技学院,重庆,401331 |
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| 摘 要： | 为解决利用光电效应测量普朗克常量实验中拐点法读取遏止电压的随意性和测量误差较大问题,利用Origin软件,对光电管伏安特性曲线求微分,再在微分曲线上确定拐点,获得准确的遏止电压,方便地得到较好的实验结果。
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| 关 键 词： | 光电效应 普朗克常量 遏止电压 改进拐点法 Origin |
Applications of Origin in Planck Constant Measurement |
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| YANG Da-xiao,TANG Hai-yan,YANG Yao-hui.Applications of Origin in Planck Constant Measurement[J].Physical Experiment of College,2010,23(5):67-69. |
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| Authors: | YANG Da-xiao TANG Hai-yan YANG Yao-hui |
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| Institution: | (Chongqing University of Science and Technology,Chongqing 401331) |
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| Abstract: | In order to get the stopping voltage exactly and reduce the measurement error in photoelectric effect experiment,Origin software was applied to measure the Planck constant.We calculated a derivative of the Volt-Ampere characteristic curve by Origin,then got the stopping voltage on the differential curve at the inflection point.Using this method,we got the stopping voltage easy and exactly,and the measurement error could be reduced,compared with using common inflection point method. |
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| Keywords: | Origin |
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