Article ; Online: Split-mode ultrasonic transducer.
The Journal of the Acoustical Society of America
2013 Volume 134, Issue 2, Page(s) 1715–1723
Abstract: A split-mode ultrasonic transducer is investigated in both theory and experiment. This transducer is a two-dimensional structure of periodically poled domains in a ferroelectric wafer with free surfaces. The acoustic vibrations are excited by a radio ... ...
Abstract | A split-mode ultrasonic transducer is investigated in both theory and experiment. This transducer is a two-dimensional structure of periodically poled domains in a ferroelectric wafer with free surfaces. The acoustic vibrations are excited by a radio frequency electric current applied along the length of the wafer, which allows the basal-plane surfaces to be free of metal coatings and thus ready for further biomedical applications. A specific physical property of this transducer consists of the multiple acousto-electric resonances, which occur due to an acoustic mode split when the acoustic half-wavelength is equal to the domain length. Possible applications include ultrasonic generation and detection at the micro-scale, intravascular sonification and visualization, ultrasound therapy of localized small areas such as the eye, biomedical applications for cell cultures, and traditional nondestructive testing including bones and tissues. A potential use of a non-metallized wafer is a therapeutic application with double action that is both ultrasound itself and an electric field over the wafer. The experimental measurements and theoretical calculations are in good agreement. |
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MeSH term(s) | Computer Simulation ; Equipment Design ; Materials Testing ; Models, Theoretical ; Motion ; Numerical Analysis, Computer-Assisted ; Oscillometry ; Pressure ; Sound ; Time Factors ; Transducers ; Ultrasonic Therapy/instrumentation ; Vibration |
Language | English |
Publishing date | 2013-08 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 219231-7 |
ISSN | 1520-8524 ; 0001-4966 |
ISSN (online) | 1520-8524 |
ISSN | 0001-4966 |
DOI | 10.1121/1.4812925 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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