| 阻尼作用下振子相图的电路模拟 |
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| 引用本文： | 蒋朝金,朱宏宇,周衍,王思慧. 阻尼作用下振子相图的电路模拟[J]. 大学物理, 2011, 30(2): 43-45 |
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| 作者姓名： | 蒋朝金 朱宏宇 周衍 王思慧 |
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| 作者单位： | 蒋朝金,王思慧,JIANG Chao-jin,WANG Si-hui(南京大学,物理学院,江苏,南京,210093);朱宏宇,周衍,ZHU Hong-yu,ZHOU Yan(南京大学,匡亚明学院,江苏,南京210046) |
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| 摘 要： | 电学量和力学量之间存在一一对应的关系,例如弹簧振子振动和LC电路的微分方程具有相同的形式.我们用电路系统在示波器中直接展现出电磁振荡过程,模拟了黏滞阻尼振动过程的相图.又利用稳压二极管模拟了摩擦阻力作用下弹簧振子振动的相图.将一道力学问题找到对应的电路模拟,在教学过程中具有启发意义.
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| 关 键 词： | 弹簧振子 LC电路 相图 摩擦阻力 稳压二极管 电路模拟 |
The circuit simulations of the phase diagram in damped oscillator system |
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| JIANG Chao-jin,ZHU Hong-yu,ZHOU Yan,WANG Si-hui. The circuit simulations of the phase diagram in damped oscillator system[J]. College Physics, 2011, 30(2): 43-45 |
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| Authors: | JIANG Chao-jin ZHU Hong-yu ZHOU Yan WANG Si-hui |
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| Affiliation: | JIANG Chao-jin1,ZHU Hong-yu2,ZHOU Yan2,WANG Si-hui1(1.College of Physics,Nanjing University,Nanjing,Jiangsu 210093,China,2.Department of Intensive Institution,Jiangsu 210046,China) |
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| Abstract: | The correspondence between electrical and mechanical parameters is well known.We build a LC circuit and use the oscilloscope to show the process of electromagnetic oscillations,as a result,it gives a clear phase diagram of viscous damping.Furthermore,circuit simulation can also give a phase diagram of frictional damping with Zener diodes.It is instructive in the teaching process to find the corresponding circuit simulations in solving mechanical problems. |
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| Keywords: | spring oscillator LC circuit phase diagram frictional resistance Zener diode circuit simulation |
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