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气垫转盘是应用气垫技术研制成的近似于无摩擦的刚体定轴转动系统.可以用来研究转动定律、平行轴定理、角动量守恒以及测定某些刚体的转动惯量.本装置自80年研制出样机以来,又在实验方法及仪器的结构方面做了一些改进,具有现象直观、数据稳定及测量精确度较高等特点.本文主要就角动量守恒定律的验证部分及实验装置的设计思想做简要介绍.
The air-cushion carousel is an approximation to a frictionless rigid-body fixed-axis rotation system developed using air-cushion technology. It can be used to study the law of rotation, the parallel axis theorem, the conservation of angular momentum, and the determination of the moment of inertia of some rigid bodies. This device was developed since 1980. Since the prototype, some improvements have been made in the experimental methods and the structure of the instrument. It has the characteristics of intuitive phenomenon, stable data and high measurement accuracy. This article mainly introduces the verification part of the law of conservation of angular momentum and the design idea of the experimental device. .