Theoretical and Experimental Investigation of a Piezoelectric Transducer with a Nonparallel-Faced Wearplate

Abstmet-Using a theoretical model, we establish an analytical result giving the average pressure emitted by an ultrasonic piezoelectric transmitter, the wearplate of which has a lack of parallelism between its two faces. Verification of the model’s validity is carried out hy recording the simulated and experimental responses of piezoelectric transmitters with different degrees of parallelism defect for the wearplate. This study is carried out for a quarter-wave wearplate at the resonance frequency of the piezoelectric element.