Structural Health Monitoring with Piezoelectric Wafer Active Sensors, 2nd Edition

• resonance, when $Y\to \infty$, i.e., Z=0

• anti-resonance, when $Y=0$, i.e., $Z\to \infty$

Electrical resonance is associated with the situation in which a device is drawing very large currents when excited harmonically with a constant voltage at a given frequency. At resonance, the admittance becomes very large, whereas the impedance goes to zero. As the admittance becomes very large, the current drawn under constant-voltage excitation also becomes very large because ...