Power Transducers for Sonics and Ultrasonics pp 86-108 | Cite as

# Physics of Array Element Interaction Phenomena

## Abstract

In a sonar array, the Interaction between sources affects the radiation loading on each individual source, the power6 it radiates and the radiation pattern of the array. This interaction is characterized by the mutual radiation impedance which is an essential parameter determining array behavior. Low-frequency transducers in a volumetric array with small size requirements are subject to much larger mutual interaction and scattering than in conventional arrays. Recent deep water tests by NUSC have shown significant deviations between experimental results and the classical theoretical treatment. This paper presents a review of array interaction phenomena, classical theoretical developments, experimental measurements and array performance effects. A case study of a recent low-frequency volumetric array test is discussed.

## Keywords

Radiation Resistance Acoustic Radiation Mutual Coupling Transducer Element Acoustic Coupling## Preview

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