https://doi.org/10.1051/epjconf/202532103003
Highly directional ultrasonic emitters with reflectors and horns
Biysk Technological Institute (branch) of the Altay State Technical University, 27, Trofimova street, Biysk, 659305, Russian Federation
* Corresponding author: shakura-main@yandex.ru
Published online: 10 March 2025
The article presents the research of the efficiency of the modernized directional ultrasonic disk radiators equipped with reflectors, phase-aligning cones and horns. Using the experimental setup consisting of two directional ultrasonic radiators operating at a close resonant frequency, the data for constructing the radiation patterns, determining the acoustic power and calculating the linear attenuation were obtained. It was found that the reflectors allow to increase the sound pressure of the radiator array by 3.5 dB, providing the angle of the main lobe of the radiation pattern within ±7.5 degrees. The installation of phase-aligning cones not only cut off the oscillations in antiphase, but also increased the resulting sound pressure by 9 dB. It was noted that with the simultaneous operation of two directional ultrasonic radiators, a region of difference frequency beats with the angle of the main lobe of the radiation pattern of ±10 degrees and the maximum sound pressure of 97.6 dB is formed.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
