A method for measuring the normal acoustic energy flux based on radially polarized transducers

Zhihao Zhou; Jieqi Zhu; Peilin Su

doi:10.1117/12.3030628

5 June 2024 A method for measuring the normal acoustic energy flux based on radially polarized transducers

Zhihao Zhou, Jieqi Zhu, Peilin Su

Proceedings Volume 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024); 1316355 (2024) https://doi.org/10.1117/12.3030628
Event: International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 2024, Xi'an, China

Abstract

A method for measuring the normal acoustic energy flux on the surface of underwater structures is introduced, and the energy flux measurement unit based on radially polarized transducer is designed, which is composed of a vibration and sound pressure sensing module, a data acquisition module, a Fourier analysis module and an acoustic energy flux synthesis output module. The advantage of this method is that a decoupling element is arranged between the piezoelectric element and the accelerometer, and the piezoelectric element adopts a radial polarization method, which reduces the influence of structural vibration on the output of the piezoelectric element. Acoustic energy flux measurement unit has the characteristics of small size, light weight, simple structure and easy installation, which can effectively reduce the influence of the component itself on the structural vibration and sound field. Therefore, this method can directly measure the normal acoustic energy flux on the surface of underwater structures.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhihao Zhou, Jieqi Zhu, and Peilin Su "A method for measuring the normal acoustic energy flux based on radially polarized transducers", Proc. SPIE 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 1316355 (5 June 2024); https://doi.org/10.1117/12.3030628

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