Experimental study on the influence of circuit parameters on the characteristics of RLC series resonant circuit
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 fac-tor with inductance,capacitance and resistance,as well as the different mechanism of the influence of different component parameters on quality factor is obtained.
series resonant circuitresonant frequencypassband widthequivalent resistance of inductance and capacitancequality factor