Review of broadband hydroacoustic transducers based on piezocomposites

This paper presents a detailed and systematic review of modern piezoelectric broadband composite elements, with special emphasis on their application in high-frequency hydroacoustic systems. The structure and principle of operation of piezocomposite transducers are described in detail, including analyses of their design features, geometrical parameters and materials used in their manufacture, such as ceramic piezoelectrics and polymer matrices. The results of studies of the main electroacoustic characteristics of transducers made of piezocomposites are presented, including frequency range, electromechanical coupling coefficient, energy conversion efficiency and directivity diagrams. The influence of composite structure, electrode topology and polarisation methods on the operational properties of the devices is considered. The prospects of using new materials such as nanostructured composites to improve the performance of transducers are discussed. The conclusion is made about significant prospects of scientific and technical development in the field of creation of broadband high-frequency hydroacoustic transducers and antennas based on piezocomposites, their importance for modern technologies of underwater communication, sounding, medical ultrasonic diagnostics and non-destructive testing is noted. The directions of improvement of design and materials, including additive technologies and multilayer structures, to increase the performance and expand the functional capabilities of such systems are considered.

Authors: H. K. М. Muhsen, P. P. Pivnev, В. I. Kaliuta

Direction: Physics

Keywords: piezocomposites, piezoelectric composite 1–3, broadband transducers

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