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Proceedings Paper

Design and simulation of an ultrasonic transducer
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Paper Abstract

This paper presents a novel ultrasonic transducer which can be used as a liquid ejector to release drug. The ultrasonic transducer is based on the design of a flextensional transducer, which is composed of interdigital piezoelectric rings and a vibration membrane. The device works at an axisymmetric resonant mode to produce maximum amplitude at the center of the vibration membrane in axial direction. For the usage of multi piezoelectric rings, the flexural plate waves can be generated by applying two out-of-phase signals. The power consumption is of primary importance in the design of this device and the usage of single-ring or multi-ring piezoelectric material instead of bulk piezo material can therefore reduce the power consumption. An optimum working frequency, at which least power is required by the device, can be found by the piezoelectric, coupled field capability of the ANSYS/Multiphysics product.

Paper Details

Date Published: 5 January 2006
PDF: 8 pages
Proc. SPIE 6035, Microelectronics: Design, Technology, and Packaging II, 60351N (5 January 2006); doi: 10.1117/12.638357
Show Author Affiliations
Zhenxian Yu, Univ. of South Australia (Australia)
Yanru Shi, Univ. of South Australia (Australia)
Hung-Yao Hsu, Univ. of South Australia (Australia)
Lingxue Kong, Univ. of South Australia (Australia)

Published in SPIE Proceedings Vol. 6035:
Microelectronics: Design, Technology, and Packaging II
Alex J. Hariz, Editor(s)

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