用复摆法测量刚体的转动惯量  

Measuring the rotational inertia of rigid body with the method of compound pendulum

作　　者：孟泉水[1] 班丽瑛[1] 朱金山[1] 

机构地区：[1]西安科技大学基础课部,陕西西安710054

出　　处：《西安科技学院学报》2003年第4期478-480,共3页

摘　　要：利用复摆原理,设计了一种新型的转动惯量测定仪。经过实验,其测量数据与理论计算值相吻合,相对误差小于4%.该实验装置操作简单,结构灵活,与理论教学内容紧密相结合。该仪器还可验证平行轴定理,使学生通过实验能够深刻掌握刚体力学所要求的内容。A new instrument for measuring rotational inertia has been devised by the principle of compound pendulum. Its principle of experiment is close in touch with the related teaching contents of mechanic of rigid body on both college physics and theoretical mechanics. Its measuring data agree with the results of theoretical calculation through experiment. Its relative error is less than 4%. This instrument is simple and smart, and be close in touch with the teaching contents of theory, and can also test the theorem of paralell axis. It can make students deeply understand the contents of mechanic of rigit body through the experiment.

关 键 词：复摆法 刚体 测量 转动惯量 平行轴定理 

分 类 号：O313.3[理学—一般力学与力学基础]