Interaction between a cMUT cell and a liquid medium around the parallel resonance frequency
Date
2007-10
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Abstract
In this paper, we present how a capacitive micromachined ultrasonic transducer (cMUT) couples to the immersion medium, based on an accurate parametric model. We show that the velocity of cMUT membrane can be written as a sum of an average velocity term and a residual term. We demonstrate that this residual term carries non-zero energy at the parallel resonance frequency by investigating the interaction between the cMUT cell and a liquid medium. We develop a model that is also applicable around the parallel resonance frequency. © 2007 IEEE.
Source Title
IEEE Ultrasonics Symposium Proceedings, 2007
Publisher
IEEE
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Keywords
Cell membranes, Electroacoustic transducers, Flow interactions, Natural frequencies, Ultrasonic transducers, Ultrasonics, Average velocity, Capacitive micromachined ultrasonic transducer, Immersion medium, Liquid mediums, Parallel resonance, Parametric modeling, Zero energy, Resonance
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Language
English
Type
Conference Paper