大学物理 ›› 2011, Vol. 30 ›› Issue (2): 43-43.
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蒋朝金[1] 朱宏宇[2] 周衍[2] 王思慧[1]
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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．
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
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.
Key words: spring oscillator, LC circuit, phase diagram, frictional resistance, Zener diode, circuit simulation
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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): 43-43.
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https://dxwl.bnu.edu.cn/CN/Y2011/V30/I2/43
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