摘要
PASCO转动运动传感器可以精准地测量并实时地记录物体转动时的角速度。在落体法测量刚体转动惯量的实验中,为了提高实验的精度,将PASCO转动运动传感器与刚体转动惯量实验仪相结合,用PASCO转动运动传感器直接测量角速度并计算角加速度。改进后的仪器简化了实验步骤,提高了实验精度。对圆盘、圆环和圆柱试样的转动惯量进行测量,三组实验的相对误差分别为0.2%、0.7%和0.3%,实验结果准确。通过实验结果可得,改进后的实验仪器操作简单且测量精度很高。
PASCO rotary motion sensor can accurately measure and record the angular velocity of the object when it rotates in real time.In the experiment of measuring moment of inertia of rigid body by the falling body method,in order to improve the accuracy of the experiment,the PASCO rotary motion sensor is used to directly measure the angular velocity and calculate the angular acceleration.The improved instrument simplifies the experimental steps and improves the experimental accuracy.The relative errors of the three groups of experiments are 0.2%,0.7% and 0.3% respectively.The experimental results are accurate.According to the experimental results,the improved instrument is easy to operate and has higher measurement accuracy.
作者
齐敬强
刘梦林
QI Jingqiang;LIU Menglin(Laboratory Centre,Beijing Jiaotong University Weihai Campus,Weihai 264401,China)
出处
《大学物理实验》
2023年第6期77-81,共5页
Physical Experiment of College
基金
北京交通大学威海校区教学改革和建设项目(911011522)。
