摘要
采用测量电容两端电压最大值的方法来确定RLC并联谐振的谐振频率。发现在RLC电路中,电阻R值愈小,η(η=f实验/f理论)愈接近于1;并且当电阻取值一定时,电容C取值越小,测量越准确。最后给出了简化电路图,即R=0,此时R′=RL。
The work adopted the means of measurement of the maximum value across the capacitance to determine the resonance frequency of RLC Parallel Resonance.In this circuit,we find that when the value of resistance R is enough small,η would have a value of more close to 1.Fixed the value of R,the capacitance is smaller,the measuring is more accurate.At last,we give a simplified circuit diagram for RLC Parallel Resonance.Namely R=0 and R′=RL at this time.
出处
《大学物理实验》
2011年第6期39-40,共2页
Physical Experiment of College
关键词
RLC并联电路
谐振频率
品质因数
RLC parallel resonance
resonance frequency
quality factor
