对电动向心力定量分析演示仪的改进  

Electrically operated centripetal force quantitative analysis demonstration meter

作　　者：代伟[1] 徐平川[1] 陈太红[1] 曾体贤[1] 兰小刚[1] 

机构地区：[1]西华师范大学物理与电子信息学院,四川南充637002

出　　处：《大学物理》2012年第7期40-42,共3页College Physics

摘　　要：针对现有"向心力演示仪"实验的不足,对电动向心力定量分析演示仪进行改进,新仪器保留了电动向心力演示仪的部分元件,改进了转动半径测量和向心力测量装置.通过改变电动机转速、圆周运动半径、金属球质量等参量,该装置可定性演示向心力和定量研究向心力表达式.For the lack of experiment of the present ＂ centripetal force demonstrator＂, we improve the quantitative analysis show of the centripetal force of the electric instrument. The new instrument retains the centripetal force demonstrator part of the electric components, measures and improves the turning radius of the centripetal force measuring device. By changing the motor speed, the radius of circular motion, balls and other quality parameters of the device can be studied qualitatively and quantitatively.

关 键 词：向心力 定量分析 演示仪 

分 类 号：G633.7[文化科学—教育学]