Abstract
A method is presented for the precise analysis of the discontinuous transient radiation field from a circular piezoelectric transducer in the liquid medium. The transducer is excited by the step pulse voltage signal, on the contrary to the conventional burst sine pulse signals. Specifically, time domain Rayleigh integral formula is extended to include the medium attenuation to meet the actual phenomena in the far field region. As a results, some peculiar characteristics intrinsic to the transient pulse radiation fields are elucidated. Simulation results are also compared with experiments to verify the validity of the proposed methods.
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