单摆实验仪的改进  

IMPROVEMENT OF SINGLE PENDULUM EXPERIMENT INSTRUMENTS

作　　者：黄晓锋[1] 梅掌荣[1] 

机构地区：[1]湖州师范学院,浙江湖州313000

出　　处：《物理与工程》2012年第5期38-40,共3页Physics and Engineering

基　　金：湖州师范学院高等教育研究项目(GJC10006);浙江省新世纪高等教育教学改革研究资助项目(yb08064)

摘　　要：针对传统单摆实验,小球在摆动时容易产生圆锥摆现象,导致周期测量不准,影响实验结果的准确性.对此,本文采用双线摆取代单线摆,避免小球产生圆锥摆现象;同时采用光电门对摆动进行计时和计数,减少人为误差的引入,进而提高实验精度.The conical pendulum phenomenon is easily observed in the traditional single pendulum experiments, which results in the inaccurate period measurement and affects the accuracy of experimental results. Therefore, in this paper, we adopt the double line pendulum instead of the original single line pendulum to avoid the conical pendulum phenomenon. Meanwhile, the swing timing and counting are realized by photoelectric gates in order to reduce the introduction of artificial error and improve the experiment precision.

关 键 词：重力加速度 双线摆 光电门 

分 类 号：O314-33[理学—一般力学与力学基础]