RLC串联谐振曲线对称性与品质因数Q的关系  

Relation between the Symmetry of the RLC Series Resonance Curve and the Q-factor

作　　者：骆金锋 谢志寒 吴莎 李雪梅 LUO Jinfeng;XIE Zhihan;WU Sha;LI Xuemei(Zhejiang Ocean University,Zhoushan 316022,China)

机构地区：[1]浙江海洋大学,浙江舟山316022

出　　处：《大学物理实验》2021年第1期11-14,共4页Physical Experiment of College

基　　金：浙江省自然科学基金(LQ16A050001)。

摘　　要：通过将RLC串联谐振电路的谐振曲线方程无量纲化得到一个普适的谐振曲线,并根据它证明了曲线的对称性只取决于品质因数Q的值,而非谐振频率的大小。在实验上用控制变量法也验证了此结论。We derive a universal resonance curve by transforming the resonance equation of the RLC series resonance circuit into dimensionless form,and apply it to show that the symmetry of the curve depends on the Q-factor rather than the resonance frequency.This result is verified experimentally by the method of control variate.

关 键 词：RLC电路 品质因数 谐振频率 谐振曲线 

分 类 号：O551.3[理学—热学与物质分子运动论]