大学物理 ›› 2015, Vol. 34 ›› Issue (1): 37-37.

• 著者文摘 • 上一篇    下一篇

扭摆法测刚体转动惯量中空气压差阻尼的屏蔽

郭志荣 马雪勇 杨振   

  1. 石河子大学理学院石河子大学生态物理重点实验室,新疆石河子832003
  • 出版日期:2015-01-25 发布日期:2015-01-20

The shield against air damping effecting the measurement of moment of inertia using torsion pendulum method

  • Online:2015-01-25 Published:2015-01-20

摘要: 对扭摆法测量刚体转动惯量的实验装置进行改进,在扭摆上加装一个圆柱形外罩,屏蔽了空气压差阻尼,保持空气黏性阻尼在测量过程恒定,提高了测量精度.

关键词: 扭摆法, 转动惯量, 空气阻尼

Abstract: The torsional pendulum method for the experiment device measuring the moment of inertia of rigid body is improved. Adding a cylindrical casing on torsional pendulum,we find that it can not only blocked air pressure differential damping,but also keep the air viscous damping constant in the measurement process. The accuracy of measurement is improved.

Key words: moment of inertia, torsion pendulum method, air damping

中图分类号: 

  • O433