The Effect of Series and Parallel Connection of a Correcting Circuit's Elements on the Duration of a Piezoelectric Probe's Acoustic Signal

摘要

A piezoelectric plate with a series or parallel correcting RL circuit connected to the input is considered. The transducer is excited by a half-sinusoidal electric voltage pulse at the eigenfrequency of the plate. The calculated possibility of reducing the duration of an acoustic pulse is compared for each type of correcting-circuit connection to a probe radiating into a liquid or a solid. In each case, the optimal (in view of the shortest radiated pulses) parameters that characterize this radiating system are determined and the durations and amplitudes of the radiated acoustic pulses are estimated.