利用智能手机旋转传感器测量转动惯量  

Measure the Moment of Inertia Using a Smartphone Rotation

作　　者：吴星星 丁益民[1] 秦凤玲 WU Xingxing;DING Yimin;QIN Fengling(College of Physics and Electronic Science,Hubei University,Wuhan 430062,China)

机构地区：[1]湖北大学物理与电子科学学院,湖北武汉430062

出　　处：《大学物理实验》2020年第2期79-81,共3页Physical Experiment of College

基　　金：湖北省高等学校教学研究项目(2017215);湖北省教育科学规划课题(2018ZB072)。

摘　　要：在用三线摆测量转动惯量的实验中,利用智能手机旋转传感器测量出刚体在转动时的旋转角度与时间的图像,然后计算出摆动的周期,进而测量出刚体的转动惯量。并将手机测量结果与传统实验结果进行比较,验证其可行性。In the experiment of measuring the moment of inertia with a three-wire pendulum,the rotation Angle and time of the rigid body are measured by the rotation sensor of the smart phone,and then the period of oscillation is calculated to measure the moment of inertia of the rigid body.The results of mobile phone measurement are compared with traditional experimental results to verify its feasibility.

关 键 词：旋转传感器 周期 转动惯量 

分 类 号：O321[理学—一般力学与力学基础]