摘要
主要就采用数字计时器和光电门电路测量单摆的振动周期,同时使用电磁铁控制摆球在铅直平面内运动等措施,对传统实验仪单摆进行改进,节省了实验时间,提高了实验的效率和实验结果的精确度。
We improve the simple pendulum of the traditional experiment instructments mainly by measuring the vibraion period of the pendulum using a digital timer and a photoelectric gate circuit and controlling the pendulum ball with electromagnet so that the ball will only move within the vertical plane.With these measures, time spent on experiment is saved, the efficiency of the experiement is improved and the accuracy of the experiemental results are raised.
出处
《丽水学院学报》
2012年第5期94-97,共4页
Journal of Lishui University
关键词
单摆
光电门
数字计时器
电磁铁
single pendulum
photoelectric gate
digital timer
electromagnet
