大学物理 ›› 2017, Vol. 36 ›› Issue (12): 37-40.doi: 10.16854/j.cnki.1000-0712.2017.12.010

• 物理实验 • 上一篇    下一篇

密立根油滴实验的不确定度分析

曾孝奇,邵明珍,陈 佶,杨 珺   

  1. 南方科技大学物理系,广东深圳 518055
  • 收稿日期:2017-03-03 修回日期:2017-04-23 出版日期:2017-12-20 发布日期:2017-12-20
  • 作者简介:曾孝奇(1983—),男,广西来宾市人,南方科技大学物理实验室实验员,硕士,主要从事大学物理实验教学

Uncertainty of Millikan's oil drop experiment

ZENG Xiao-qi,SHAO Ming-zhen,CHEN Ji,YANG Jun   

  1. Department of Physics,Southern University of Science and Technology,Shenzhen,Guangdong 518055,China
  • Received:2017-03-03 Revised:2017-04-23 Online:2017-12-20 Published:2017-12-20

摘要: 密立根油滴实验中,油滴携带电荷量越多,通常测量误差越大.从不确定度的计算出发,利用数值模拟,定量分析了如何在保证测量精度的情况下尽可能测量多个不同电荷量的油滴.我们的结果对于准确测量提供了理论依据.

关键词: 密立根油滴实验, 不确定度, 误差分析

Abstract: In the Millikan's oil drop experiment,the more electric charge the oil drop carries,the larger measurement uncertainty is.According to the calculation of uncertainty,we analyze quantitatively how to balance the measurement uncertainty and the droplet charge.Our results will be helpful for choosing oil droplets and controlling the experimental uncertainty.

Key words: Millikan's oil drop experiment, uncertainty, error analysis