Abstract
In this work, we will analyze fluid‐borne coupling between adjacent elements of a transducer array. In the case of a transducer having low inertia mass, such coupling can result in a reduction in the radiation efficiency and the directional fidelity of the array. The coupling factor and the mutual radiation impedance have been investigated by Lord Rayleigh (1903), Wolff and Malter (1929), and R. I. Pritchard (1960) for the case of an array comprised of ideal piston radiators. These results will be used as a starting point for our work. The effect of the inertia impedance of the transducer and the control of the special distribution of the radiated field is considered.
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