|
|
|
|
| Equivalent Circuit |
 |
|
|
The following electric circuit can be used to model a resonance / anti-resonance 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 Cp |
|
|
C and Cp in parallel must equal the piezo's low-frequency capacitance |
|
|
The frequencies (in Hz) of the electrical resonance and anti-resonance are given by the following equations
(which assume a small series resistance R):
|
|
|
