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RL串联电路中振荡的研究

更新时间:2020-10-26 10:11:20 大小:905K 上传用户:zhengdai查看TA发布的资源 标签:rl串联电路振荡 下载积分:2分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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在RL电路暂态特性研究实验中,发现电感(电阻)电压也会呈现振荡现象。目前对RL电路中电感(电阻)电压呈现的振荡现象研究较少。本文实验研究了RL电路的振荡现象,发现振荡出现的两个条件:(1)只有在电阻阻值为兆欧量级时,振荡现象才会出现,且随着电阻或电感值的增加电压振荡增强;(2)示波器输入阻抗为1MΩ时电压振荡出现,阻抗为50Ω时振荡消失。最后给出了相应的物理解释。

In experiment of study on transient characteristics of RL series circuit,it was found that inductance(resistance) voltage has oscillation.Presently,there is less research on oscillation in RL series circuit.In this paper,this oscillation was experimentally studied.It was found that(1) oscillation does not appear until the resistance is increased to Mega-ohm magnitude,and oscillation increases with the increase of the resistance.(2) another condition for oscillation is that the input impedance of oscilloscope must be 1MΩ,not 50Ω.The corresponding physical explanations are also given.

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RL串联电路中振荡的研究.pdf 905K

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