利用智能手机近程传感器验证动量守恒定律

Verification of momentum Conservation Law with Smart phone proximity Sensor

在气垫导轨上验证动量守恒定律的实验中,利用智能手机近程传感器和Sensor Kinetics软件,通过读取时间脉冲图像,计算物体碰撞前后速度,进而达到验证两种碰撞——完全弹性碰撞和完全非弹性碰撞的动量守恒的目的。并将其分别与传统实验方法所得结果进行对比,验证其准确性和可行性。

In the experiment of verifying the momentum conservation law on the air track,we use the smart phone proximity Sensor and Sensor Kinetics software to calculate the velocity of two objects before and after the collision by reading the time pulse image,so as to verify the momentum conservation of two kinds of cllision-completely elastic ollision and completely inelastic collision.In addition,we compare the results with those obtained by traditional experimental methods to venify its accuracy and feasibility.