大学物理 ›› 2019, Vol. 38 ›› Issue (11): 21-.doi: 10.16854 / j.cnki.1000-0712.190008

• 物理实验 • 上一篇    下一篇

扭摆法测量物体转动惯量实验改革

王维光   

  1. 中国人民武装警察部队海警学院教保处,浙江宁波315800
  • 收稿日期:2018-01-03 修回日期:2019-05-10 出版日期:2019-11-20 发布日期:2019-12-19
  • 作者简介:王维光( 1978-) ,男,吉林公主岭人,武警海警学院教保处副教授,主要从事大学物理实验教学与研究.

The reform in measuring objects’processional moment by torsion pendulum method

WANG Wei-guang   

  1. China Coast Guard Academy,Ningbo,Zhejiang 315800,China
  • Received:2018-01-03 Revised:2019-05-10 Online:2019-11-20 Published:2019-12-19

摘要: 在当前大学物理实验扭摆法测量物体转动惯量实验中,通常将“几何法”与“扭摆法”相互交织,导致实验过程逻辑混乱. 本文提出删除用“几何法”倒推“扭摆法”中弹簧扭转常数K 值这一环节,改用“定义法”直接测量K 值,从而将“几何法” 与“扭摆法”隔离,并重新设计了实验内容,使实验条理更加清晰.

关键词: 大学物理实验, 转动惯量, 扭摆法

Abstract: In the current college physics experiment teaching,the experiment of measuring objects’processional moment by torsion pendulum method has some logical confusion because of the intertwining with the geometric method. This paper proposes that the definition method rather than the geometric method is directly used to calculate the torsion coefficient K. Then,this paper rearranges the experimental content and makes the process more clearly.

Key words: college physics experiment, processional moment, torsion pendulum method