Variation of High Power Air Transducer

Document type: Conference Papers
Peer reviewed: Yes
Full text:
Author(s): Claes Hedberg, Hamid Ghazisaeidi
Title: Variation of High Power Air Transducer
Translated title: Variation av en högeffektluftsändare
Conference name: 27th Symposium on Ultrasonic Electronics
Year: 2006
City: Nagoya
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Mechanical Engineering (Sektionen för teknik – avd. för maskinteknik)
School of Engineering S- 371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/ing/
Authors e-mail: claes.hedberg@bth.se
Language: English
Abstract: High power ultrasonic transducers are widely used for detecting objects and measuring distances, etc. In actual applications, for the air coupling ones the impedance mismatch between the transducer surface and air is large, so there is only a small amount of energy transmitted. Most of the energy loss occurs during the transformation of energy from the transducer radial cone to the air. The purpose of this study is to investigate different designs of the radial cone of the transducer and analyze their vibration in order to suggest design variations for improved vibration amplitudes. Concerning a piezoelectric ceramic transducer, we focus on two parameters of the transducer radial cone. This report presents schemes for increasing pressure levels.
Subject: Mechanical Engineering\Structural Mechanics
Keywords: Air-coupled transducer, high-power acoustics, air transducer
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