复现赫兹实验:利用手机无线网络测量光速  

Recurrence of Hertz experiment:measuring light speed using cellular wireless networks

作　　者：汪靖博 张胜 杭志宏 WANG Jing-bo;ZHANG Sheng;HANG Zhi-Hong(School of Physical Science and Technology,Soochow University,Soochow,Jiangsu 215006,China;Institute for Advanced Study of Soochow University,Soochow,Jiangsu 215006,China)

机构地区：[1]苏州大学物理科学与技术学院,江苏苏州215006 [2]苏州大学高等研究院,江苏苏州215006

出　　处：《大学物理》2025年第1期101-105,共5页College Physics

摘　　要：赫兹成功验证了电磁波与光的速度相同,这一重要实验结论使得电磁学和光学得以统一,成为电动力学的实验基础,也是大学物理中重要的实验之一.本文利用手机无线网络,成功设计和制备开口谐振电路,利用驻波法,准确测量得到光速为(3.007±0.018)×10^(8) m/s,与光速的实际值2.998×108 m/s较为吻合.本实验仅需利用手机和简单加工的开口谐振电路(电路板设计一并提供),简单易行,利用与赫兹原实验完全相同的观测方法,可以在任何地方开展相关实验演示,为大、中学生的物理实验演示提供新的思路.Hertz successfully verified that electromagnetic waves and light have the same speed.This important experimental conclusion made electromagnetism and optics unified,and became the experimental basis of electrodynamics,which now is also one of the most important experiments in university physics.In this paper,a split-ring resonator circuit under cellular wireless network is successfully designed and prepared.An accurate value of the speed of light as(3.007±0.018)×10^(8) m/s is obtained by standing wave method,which is in good agreement with its actual value 2.998×10^(8) m/s.In this experiment,only cellular phones and a split-ring resonator circuit board(with circuit board design provided)are required,thus it can be carried out anywhere,where an identical observation method as Hertz's original experiment can be done.It may pave new road for relevant demonstrations for university and high school students.

关 键 词：开口谐振电路 赫兹实验 光速测量 

分 类 号：O4-34[理学—物理]