基于光电效应的普朗克常数的测定与分析

Measurement and Analysis of the Planck Constant Based on the Photoelectric Effect

利用光电效应法测量普朗克常数是一种简单且有效的实验方法.在大学物理光电效应测量普朗克常数的近代实验中,采用PC-Ⅱ型普朗克常数测定仪对普朗克常数进行测定和分析.该文采用了上述仪器对普朗克常数进行了测量和理论分析,用"减速电位法"测遏止电压,应用数学中的斜率法进行分析,克服了传统实验的困难,实验操作可重复好.光电效应已经广泛地应用于各科技领域,利用光电效应制成的光电元件(如光电管、光电池)已成为生产和科研中不可缺少的器件.

Planck constant measurement using photoelectric effect method is a simple and effective experimental method. The type of PC-Ⅱ Planck constant instrument is used to measure the Planck constant in college physical experiment using the photoelectric effect. In this paper,Planck constant was measured with the retarding potential method using this instrument and the data were analyzed by the slope method of mathematics. It was found that the method could overcome the difficulty of the traditional experiment method. Now photoelectric effect has been widely used in various areas of science and technology,and many kinds of the optoelectronic devices,such as the phototube and photocell,are made by the photoelectric effect in the production and scientific research.