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Simulation of Piezoelectric Multilayer Probes Under High-Voltage Pulse Excitation in Medical and Industrial Applications

Piezoelectric probes in medical and industrial applications use to have a multilayer structure in order to produce short duration ultrasonic pulses. This duration is also dependent on electrical excitation. The associated electronics presents some non-linear behaviours which are not considered in conventional simulation approaches. In this paper a PSpice global model, including piezoelectric aspects and non-linear high-voltage electronics, is presented and applied to analyse a piezoelectric process in transient regime. Parameter setting in excitation energy for the driving and transient piezoelectric response is analysed, by computer simulation and parametric analysis.