Abstract
The multiport transducer developed by Dr. J. L. Butler is a novel low-frequency underwater acoustic source using free-flooded resonance cavity chambers with both the inside and outside driving surfaces made of cylindrical piezoceramics. In this paper, a lumped parameter circuit model and an equation for the transmitting voltage response of the multiport transducer are discussed. Simulation results from the developed circuit model in this paper strongly agree with Butler's measured results and better than with his circuit model. Some considerations for improving the response are also reported.
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