基于三种不同的数据处理软件进行光电效应测普朗克常量实验中的数据处理

运用数据处理软件对物理实验数据进行模拟,避免了繁杂的数学运算过程,增加了数据处理的准确性及快捷性,其程序简单直观,能够直观地反映实验过程及结果,软件知识的运用能够激发学生探索知识的兴趣。本文回顾了光电效应中用反向截止电压法测量普朗克常数的实验原理,讨论了可能影响实验精度的原因,提出了用excel,matlab和origin软件绘制实验曲线确定普朗克常量的方法。

Based on Three Different Data Processing Software to Process the Data of Measuring Planck Constant Experiment by the Photoelectric Effect

Using the data processing software to simulate the physical experiment data can avoid the complicat-ed mathematical process and increase the accuracy and convenience of data processing.The procedure is simple and intuitive,which can intuitively reflect the process and results of the experiment and application of software knowledge to stimulate the students’ interest for exploring the knowledge.This paper reviews the photoelectric effect by using reverse cutoff voltage method to measure Planck constant’ s experimental principle,discusses the possible reasons for affecting the precision of experiment and put forward the method by using Excel,MAT-LAB and Origin software to render the experimental curve for determining Planck constant.