大学物理 ›› 2015, Vol. 34 ›› Issue (8): 23-23.

• 著者文摘 • 上一篇    下一篇

昆特管实验原理分析

路峻岭 秦联华 傅敏学 李复 任乃敬   

  1. 清华大学物理系,北京100084
  • 出版日期:2015-08-25 发布日期:2015-08-20

Investigation on the principle of Kundt's tube experiments

  • Online:2015-08-25 Published:2015-08-20

摘要: 根据声学原理对昆特管演示实验进行分析,给出了对实验现象细节的一种物理解释,即在昆特管中除主驻波模式之外还激励起了最低一级高次驻波模式振动,昆特管内的声波场实际上是主驻波模式和最低一级高次驻波模式叠加形成的声波场.

关键词: 昆特管实验, 驻波模式, 贝塞尔函数

Abstract: The principle of Kundt's tube experiments is studied. An explanation of the experimental phenomenon is given in detail,which is that besides the main standing wave mode,the first higher mode is excited. The sound field in a Kundt's tube is the superposing of the two standing wave modes.

Key words: Kundt's tube experiments, modes of standing wave, Bessel function

中图分类号: 

  • O436.4