大学物理 ›› 2018, Vol. 37 ›› Issue (9): 25-29.doi: 10.16854 /j.cnki.1000-0712.170682

• 物理实验 • 上一篇    下一篇

关于多个节拍器自锁同步实验的探究

路峻岭,顾晨,秦联华,任乃敬   

  1. 清华大学物理系,北京100084
  • 收稿日期:2017-12-06 修回日期:2018-02-14 出版日期:2018-09-20 发布日期:2018-09-20
  • 作者简介:路峻岭( 1946—) ,男,河北南宫人,清华大学物理系教授,主要从事大学物理教学和传感器敏感元件物
  • 基金资助:
    教育部“基础学科拔尖学生培养试验计划”项目( 20160204) 资助

A study on multiple self synchronization of metronomes

LU Jun-ling,GU Chen,QIN Lian-hua,REN Nai-jing   

  1. Department of Physics,Tsinghua University,Beijing 100084,China
  • Received:2017-12-06 Revised:2018-02-14 Online:2018-09-20 Published:2018-09-20

摘要: 对多个节拍器自锁同步实验进行了分析,给出了对其出现自锁同步现象的一种物理解释,即: 每个节拍器的摆锤被 擒纵机构冲击后都在做阻尼振动,其间,各个节拍器擒纵机构对各自摆锤的冲击都通过同向弱耦合作用对其它摆锤的振动施 加影响,影响的结果使得振动相位较前者后移,使得振动相位较后者前移,最后,众多节拍器都一起作同步振动.

关键词: 节拍器, 物理摆, 阻尼振动, 弱耦合, 振动相位

Abstract: We analyze the synchronous self-locking of metronomes and gave its physical explanation. The pendulum is in vibration damping after captured by escapement of metronome and in the meantime,all metronomes are weakly coupled by the vibration,resulting in the vibration phase shift backward than the former one and shift forward than the latter one. Finally,all the vibration of metronome is synchronous.

Key words: metronome, physical pendulum, vibration damping, weak coupling, vibration phase