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Proceedings Paper

FEM Simulation of CMUT Cell for NDT Application
Author(s): . Aditi; Ravindra Mukhiya; Ram Gopal; V. K. Khanna
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Paper Abstract

This paper presents the simulation of various electromechanical performance parameters for an efficient and broadband air coupled Capacitive Micromachined Ultrasonic Transducer (CMUT) for Non Destructive Testing and Evaluation (NDT/NDE) using FEM simulation tool, Coventor Ware. The non contact ultrasonic inspection performed in ambient air reduces the complexity and cost. Various critical parameters like collapse voltage, resonant frequency, coupling coefficient, squeeze film damping, bandwidth, quality factor and transient response of the single cell of CMUT are discussed. We employ a hexagonal CMUT cell for the modeling to improve the CMUT’s transmission/reception efficiency as the average membrane displacement is high.

Paper Details

Date Published: 15 October 2012
PDF: 7 pages
Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 85491H (15 October 2012); doi: 10.1117/12.926046
Show Author Affiliations
. Aditi, CSIR-Central Electronics Engineering Research Institute (India)
Ravindra Mukhiya, CSIR-Central Electronics Engineering Research Institute (India)
Ram Gopal, CSIR-Central Electronics Engineering Research Institute (India)
V. K. Khanna, CSIR-Central Electronics Engineering Research Institute (India)


Published in SPIE Proceedings Vol. 8549:
16th International Workshop on Physics of Semiconductor Devices
Monica Katiyar; B. Mazhari; Y N Mohapatra, Editor(s)

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