High-Frequency and High-Efficiency Underwater Power Transducer Based on Composite Piezoelectric Materials

Underwater wireless power transmission technology is crucial in marine development, and the transducer is its core component. This paper focuses on the research of high-frequency and high-efficiency underwater power transducers based on composite piezoelectric materials. First, the relevant research background and status are explained, and the key significance of improving the efficiency of the transducer is pointed out. The characteristics of 1–3 composite piezoelectric materials are deeply analyzed, and the working principal model of the transducer is constructed based on the piezoelectric effect and the inverse piezoelectric effect. The transducer structure is optimized by aerogel-filled composite material wrapping and plate-like structure design, and the algorithm is used to study the transducer conversion efficiency, acoustic wave beam control and near-far field adjustment. The COMSOL software is used for simulation analysis. The COMSOL software has been used to analyze the simulation. Detailed simulation results, including three-dimensional model of transducer structure, electrical and acoustic field distribution, conversion efficiency and directionality, have been given. The results show that the conversion efficiency can be improved by 30% under specific frequency, the directivity accuracy of acoustic wave during mechanical-acoustic conversion is increased 25%, and the transmission distance is improved 20%.