基于 Phyphox App 利用智能手机研究三体耦合摆

doi:10.14139/j.cnki.cn22-1228.2022.03.024

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摘要

基于 Phyphox App，利用智能手机磁传感器通过测量磁感应强度的变化研究三体耦合摆运动规律。实验结果清晰地显示拍现象以及能量在三摆中的传播过程。通过改变四种不同的初始条件，发现耦合摆呈现不同的振动模式。随着耦合长度增加，中间摆拍周期单调减小。利用 Maple 软件得到三体耦合摆解析解，并将数值计算结果与实验数据进行对比，理论与实验结果基本一致。所搭建的三体耦合摆实验装置简单，非常适合作为居家实验来开设。

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	周桐
	贺丰源
	王锦辉

关键词: 三体耦合摆 Phyphox 智能手机拍 Maple

Abstract:

The magnetic sensor of smartphone with Phyphox App was used to build an experimental device for the three-body coupled pendulum by measuring the change of magnetic induction intensity． The beats and energy transfer among pendulums can be clearly observed． By changing four initial conditions，different oscillating modes occur．In addition，with increasing coupling distance and the beat periods of mid pendulum monotonously decrease． The three-body coupling problem was solved by Maple software． It is found that the solution of equations is basically consistent with the experimental results．The fabricated experimental device is simple and suitable for home experiment．

Key words: three-body coupled pendulum phyphox smartphone beat maple

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

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引用本文:

周桐, 贺丰源, 王锦辉. 基于 Phyphox App 利用智能手机研究三体耦合摆 [J]. 大学物理实验, 2022, 35(3): 113-118.
ZHOU Tong, HE Fengyuan, WANG Jinhui. Ｒesearch on Three-Body Coupled Pendulum Using Smart Phone Based on Phyphox App . Physical Experiment of College, 2022, 35(3): 113-118.

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http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2022.03.024 或 http://dawushiyan.jlict.edu.cn/CN/Y2022/V35/I3/113

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