利用智能手机拍摄功能测量刚体的转动惯量

doi:10.14139/j.cnki.cn22-1228.2022.03.023

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摘要

详细讨论落体法测转动惯量实验中下落时间和落体质量的关系，提出利用手机“慢动作”拍摄功能记录刚体的转动，并根据拍摄视频的时间线读出刚体的角位置，再用 Origin 处理数据拟合曲线获取刚体的角加速度，从而得到刚体的转动惯量。该测量方法与传统测量方法相比更简便、测量精度更高，对于改进大学物理实验教学具有重要意义。

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	张颖涛
	李晓兰
	孙士帅

关键词: 慢动作拍摄时间线转动惯量

Abstract:

The relationship between falling time and falling body mass in the experiment of measuring moment of inertia with falling body method is discussed． A novel approach is proposed to measure moment of inertia where the slow-motion shooting function of Smartphone is employed to capture the rotation of rigid body，then the rigid body angle location can be obtained according to the time line of the video． Using Origin to process data，fitting curve to obtain the angular acceleration of rigid body，finally obtain the moment of inertia of the rigid body rotation．Compared with the traditional measurement method，the measurement method is more simple and more accurate，which is of great significance for improving the teaching of physics experiment．

Key words: slow motion shooting time line moment of inertia

出版日期: 2022-06-25 发布日期: 2022-06-25 整期出版日期: 2022-06-25

ZTFLH:

O 4-33

引用本文:

张颖涛, 李晓兰 , 孙士帅 . 利用智能手机拍摄功能测量刚体的转动惯量 [J]. 大学物理实验, 2022, 35(3): 109-112.
ZHANG Yingtao, LI Xiaolan , SUN Shishuai. The Measurement of Moment of Inertia of Ｒigid Body Via the Shooting Function of Smartphone . Physical Experiment of College, 2022, 35(3): 109-112.

链接本文:

http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2022.03.023 或 http://dawushiyan.jlict.edu.cn/CN/Y2022/V35/I3/109

[1]	. [J]. Physical Experiment of College, 2020, 33(1): 0 .
[2]	. [J]. Physical Experiment of College, 2020, 33(1): 0 .
[3]	WU Ming, ZENG Hong, ZHANG Wenpeng, ZHANG Yuanwei, DAI Zhenbing. Theoretical and Experimental Research of A zimuthal-Radial Pendulum [J]. Physical Experiment of College, 2020, 33(1): 1 -6 .
[4]	LIU Weiwei, SUN Qing, LIU Chenglin. Research on Selection of Critical Magnetization Current for Measuring Charge-Mass Ratio of Electron by Magnetron Controlling [J]. Physical Experiment of College, 2020, 33(1): 7 -9 .
[5]	DENG Li, LIU Yang, ZHANG Hangzhong, ZHOU Kewei, ZHAO guoru, WEI luanyi. MATLAB simulation of Fourier transform of Gaussian beam and the spatial filtering effects basing on 4F optical imaging system [J]. Physical Experiment of College, 2020, 33(1): 10 -16 .
[6]	MA Kun. Experiment Study on the Measuring Young' s Modulus by Stretching [J]. Physical Experiment of College, 2020, 33(1): 17 -20 .
[7]	FEI Xianxiang, CHEN Chunlei, WANG Wenhua, SHI Wenqing, HUANG Cunyou. Design of Lens Group Focal Length Measurement System Based on Object-Image Parallax Comparison [J]. Physical Experiment of College, 2020, 33(1): 21 -24 .
[8]	LI Chunjiang, LI Luyu, YANG Jinglei, LI Tingrong, XIANG Wenli. A New Method for Simple and Rapid Measurement of Refractive Index [J]. Physical Experiment of College, 2020, 33(1): 25 -28 .
[9]	WANG Cuiping, YAO Mengyu, YE Liu, LI Aixia, ZHANG Ziyun, DAI Peng. Progress and Applications of Electron Spin Resonance in Biology [J]. Physical Experiment of College, 2020, 33(1): 29 -33 .
[10]	CHEN Yingmo, SHEN Siyi, WANG Jie. Study on the Characteristics of Silicon Photocells [J]. Physical Experiment of College, 2020, 33(1): 34 -36 .