落球法测定重力加速度实验的改进  

THE IMPROVEMENT OF MEASURE ACCELERATION OF GRAVITY BY FREE-FALL

作　　者：朱端兴 曹正东[2] 

机构地区：[1]上海师范大学,上海200234 [2]同济大学,上海200092

出　　处：《大学物理实验》2002年第3期26-29,共4页Physical Experiment of College

摘　　要：简述落球法测定重力加速度等实验中 ,采用自制激光光电计时器 ,提高了测量时间的准确度 ,该计时器具有定位准、抗干扰能力强等优点。A new type of laser photoelectric calculagraph has beendesigned and constructed.Using this home-made calculagraph to measure the acceleration of gravity in the free-fall experiments,we have a much better accuracy than before.The results show such photoelectric calculagraph has the advom tages of accurate orientation and strong interference rejection etc.

关 键 词：落球法 重力加速度 实验 激光 准确度 光电计时器 定位 简述 优点 自制 

分 类 号：O4-3[理学—物理] G633.7[文化科学—教育学]