密立根实验中油滴选取原则的理论依据分析

On a theorical basis for selecting oil drop in Millikan experiment

在密立根法测量基本电荷电量的实验中,油滴选取应满足下降时间在20秒左右,油滴的带电荷数要少于5个的原则,本文在理论上分析了油滴选取原则的依据,给出了在油滴的下落时间和平衡电压的坐标系中等电荷数的多重曲线,为选择合适的油滴提供了理论上的判断依据。

In the experiment of measuring the basic electric charge by using Millikan method,the selection of oil drop should satisfy the principles of which fall time is within 20 minutes and charged amounts of oil drop are less than five.The article makes an analysis of a basis for selection of oil drop in theory and gives the mulcurve of isoelectric charge numbers in the fall time of oil drop and the coordinate system of balanced voltage,which provides a theorical basis for selecting the right oil drop.