电路参数对RLC串联谐振电路特性影响的实验研究  

Experimental study on the influence of circuit parameters on the characteristics of RLC series resonant circuit

作　　者：王玉清[1] WANG Yuqing(School of Physics and Electronic Information,Yan’an University,Yan’an 716000,China)

机构地区：[1]延安大学物理与电子信息学院,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2024年第3期97-101,共5页Journal of Yan'an University：Natural Science Edition

基　　金：国家自然科学基金项目(61861043)。

摘　　要：由于谐振电路具有良好的选择性,在通信与电子技术中得到了广泛的应用,串联谐振时电感电压或电容电压大于激励电压的现象在无线电通信技术领域获得了有效的应用。本文采用实验方法,通过保持电阻、电感不变,改变电容;保持电阻、电容不变,改变电感;保持电感、电容不变,改变电阻三种方式,研究了电容、电感、电阻等电路参数对RLC串联谐振电路特性的影响,得到电路谐振时谐振频率、通频带宽度、电感线圈等效电阻、品质因数随电感、电容、电阻变化的规律及不同元件参数对品质因数影响的不同机理。Due to the good selectivity of resonant circuit,it has been widely used in communication and electronic technology.The phenomenon that inductive voltage or capacitance voltage is greater than excitation voltage in series resonance has been effectively applied in the field of radio communication technology.In this paper,the experimental method is used to research on the effects of circuit parameters such as capacitance,inductance and resistance on the characteristics of RLC series resonant circuit by three ways such as keeping the resistance and inductance unchanged and changing the capacitance,keeping the resistance and capacitance unchanged and changing the inductance,and keeping the inductance and capacitance unchanged,and changing the resistance,the variation laws of resonant frequency,passband width,equivalent resistance of inductance coil and quality factor with inductance,capacitance and resistance,as well as the different mechanism of the influence of different component parameters on quality factor is obtained.

关 键 词：串联谐振电路 谐振频率 通频带宽度 电感线圈等效电阻 品质因数 

分 类 号：O441[理学—电磁学]