恢复系数及重力加速度的落球弹跳法测量  

Measurement of coefficient of restitution and gravitational acceleration by using bouncing ball

作　　者：俞晓明[1] 崔益和[2] 陈飞[3] 胡国庆 

机构地区：[1]盐城工学院基础教学部,江苏盐城224051 [2]盐城工学院实验教学部,江苏盐城224051 [3]盐城工学院机械工程学院,江苏盐城224051 [4]不详

出　　处：《大学物理》2010年第11期35-36,58,共3页College Physics

摘　　要：建立了钢珠与玻璃板间的弹跳碰撞模型,推导出恢复系数及重力加速度的测量公式,借助声音传感器采集了碰撞产生的脉冲声信号,同时测得恢复系数和重力加速度.Re-bouncing collision model between steel ball and glass plate is established, the equations for the measurement of both coefficient of restitution and acceleration due to gravity are obtained. The pulsed acoustic signals with the assistant of acoustic sensor while each collision is acquired. Finally, the measurements of both coefficient of restitution between steel ball and glass plate and free-fall acceleration are performed.

关 键 词：恢复系数 重力加速度 落球 朗威DISLab数字化实验系统 

分 类 号：O4-33[理学—物理]