NDLI: P2O-7 Design and Construction of an Acoustic Horn for High Power Ultrasonic Transducers

Content Provider	IEEE Xplore Digital Library
Author	Jeongdong Woo Yongrae Roh Kookjin Kang Susung Lee
Copyright Year	2006
Description	Author affiliation: Sch. of Mech. Eng., Kyungpook Nat. Univ., Daegu (Jeongdong Woo; Yongrae Roh)
Abstract	Typical high power transducers consist of a piezoelectric or magnetostrictive element of transduction and a solid acoustic horn that acts as a vibration amplifier. In order to obtain high power capacity, the acoustic horn needs to be optimized to match the active element. In this study, we did optimal design of an acoustic horn for a high power magnetostrictive transducer and constructed a sample prototype of the horn to verify the validity of the design. For the design, we derived the theoretical output power of a horn as a function of its dimensions, and determined the optimal dimensions to achieve the maximum power through finite element analyses with ANSYSreg. The analytical method could quite quickly determine the horn length while the finite element method could refine the planar dimensions of the structure. The transducer had the resonant frequency of 19.3 kHz and had the maximum sound pressure level of 199 dB with an omni-directional radiation pattern in water. The analysis method developed in this study is so general that it can be applied to the design of acoustic horns for high power transducers of various operating frequencies and transduction materials
Starting Page	1922
Ending Page	1925
File Size	842109
Page Count	4
File Format	PDF
ISBN	1424402018
ISSN	10510117
DOI	10.1109/ULTSYM.2006.483
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-02
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultrasonic transducers Acoustic transducers Magnetostriction Finite element methods Piezoelectric transducers Solids High power amplifiers Prototypes Power generation Magnetic analysis
Content Type	Text
Resource Type	Article

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