扭摆法验证平行轴定理实验的改进  

Improved Torsion Pendulum to Verify the Parallel Axis Theorem Experiment

作　　者：谌正艮[1] 廖艳林[1] 汪洪[1] 杨名[1] CHEN Zheng-gen LIAO Yan-lin WANG Hong YANG Ming(Anhui University,Anhui Hefei 23003)

机构地区：[1]安徽大学,安徽合肥230039

出　　处：《大学物理实验》2016年第5期103-105,共3页Physical Experiment of College

摘　　要：转动惯量是物体定轴转动中的重要物理量,物体的转动惯量测量的常用方法有三线摆法与扭摆法。扭摆法通常测量物体通过质心转轴的转动惯量,所以用扭摆法验证平行轴定理一直不怎么直观,本文就是在已有的基础上进行一些改进,已达到更好、更直观验证平行轴定理。The moment of inertia is object about a fixed axis rotation of the important physical quantities,the ob-ject rotational inertia measurement methods have three line pendulum method and torsion pendulum method.Tor- sion pendulum method often measure object relative to the moment of inertia of the rotating shaft of the center of mass,so the torsion pendulum method verily the theorem of parallel axes has not how do intuitive.It is on the ba-sis of existing were some improvement,has achieved the better,more visually verily the theorem of parallel axes.

关 键 词：扭摆法 转动惯量 平行轴定理 

分 类 号：O4-33[理学—物理]