摘要
利用电磁感应原理对传统的自由落体仪进行了改造,解决了电磁铁剩磁的影响,光电门发射光束不是水平射入接收器件,小球下落时挡光部位不在同一位置带来的测量误差及小球下落时不能准确挡光等缺点.
By adopting the electromagnetic induction principle, some improvements are made for the traditional freely falling experiment apparatus to solve problems such as the influence of remanence, the errors caused by non-horizontal light emission of photoelectric detector and the inconsistency of the light block position of the falling ball. The problem of inaccurate light blocking is also solved.
出处
《物理实验》
北大核心
2010年第6期34-36,共3页
Physics Experimentation
关键词
电磁感应
自由落体
重力加速度
electromagnetic induetion
freely falling body
gravity acceleration
