D6-b2 - Phase-controlled array of ultrasonic transducers for active focusing of waves in air. Applied to foam abatement
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- D6-a - Power Ultrasound Cavitation and Cleaning
- Author(s)
- R. Galleguillos-Silva, C. Leon-Montalva - University Finis Terrae, Santiago (Chile), E. Cancino-Jaque, J. Meneses-Diaz, M. Carrion-Acuña, Y. Vargas-Hernandez, L. Gaete-Garreton - University of Santiago de Chile, Santiago (Chile)
- Pages
- 279 - 282
- DOI
- 10.5162/Ultrasonic2025/D6-b2
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
This work presents the development and experimental validation of an annular array of 56 ultrasonic transducers operating at 25 kHz for contactless industrial foam abatement. Through phase control algorithms, the system achieves acoustic focusing in air, generating pressure levels exceeding 150 dB SPL at the focal point. Experimental results demonstrate successful foam disruption capabilities, and the scalability was also validated through numerical simulations in COMSOL Multiphysics and laboratory testing.