Effects of Mutual Interactions on a Phased Transducer Array

Abstract

In the conventional design method of the SONAR array system, variations of the transducer's velocity occur because the acoustic interactions between transducers are not considered. This research was conducted first, to analyze the acoustic interaction effects on the vibration velocity of transducers using an equivalent circuit. Then, we studied the acoustic interaction effects on the amplitude and phase of the velocity, the radiation power outputs and the far-field directivity pattern in the case of a phased array. It is obvious that there have been drastic effects on the radiated field from the phased array operated at the resonance frequency.