


Equivalent Circuit 


The following electric circuit can be used to model a resonance / antiresonance pair that
exists in the electrical impedance of piezoelectrics.




The following 2 conditions are required for the circuit to accurately simulate piezoelectric resonance behavior: 


The value of C must be much smaller than C_{p} 


C and C_{p} in parallel must equal the piezo's lowfrequency capacitance 

The frequencies (in Hz) of the electrical resonance and antiresonance are given by the following equations
(which assume a small series resistance R):


