Pressure amplification mechanism for airborne ultrasound: Air-DPLUS

Airborne ultrasound is a promising technology in food and agriculture industries. However, its practical application is limited by its high energy attenuation and short propagating distance. In this work, we introduced a new system called Air-DPLUS (airborne double-parabolic-reflector wave-guided ul...

Full description

Saved in:
Bibliographic Details
Published in:Japanese Journal of Applied Physics 2023-06, Vol.62 (6), p.60903
Main Authors: Wang, Weiquan, Yamada, Kyohei, Tabaru, Marie, Morita, Takeshi
Format: Article
Language:English
Subjects:
airborne ultrasound
DPLUS
high-power ultrasound
Transducers
ultrasonic transducer
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Airborne ultrasound is a promising technology in food and agriculture industries. However, its practical application is limited by its high energy attenuation and short propagating distance. In this work, we introduced a new system called Air-DPLUS (airborne double-parabolic-reflector wave-guided ultrasonic transducer), consisting of a focusing mechanism combined with a cylindrical airborne transducer. We evaluated the output pressure and its axial distribution in simulations and experiments. Under transient and continuous excitation, our prototype Air-DPLUS amplified the maximum pressure 6.9 and 24.4 fold, respectively, in comparison with the use of an airborne transducer alone.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/acdb19