NDLI: The impact of element taper and inhomogeneous material properties on ultrasonic array performance

Content Provider	IEEE Xplore Digital Library
Author	Powell, D. Reynolds, P. Vaughan, D. Mould, J. Desilets, C.
Copyright Year	2002
Description	Author affiliation: Weidlinger Associates Inc, Los Altos, CA, USA (Powell, D.; Reynolds, P.; Vaughan, D.; Mould, J.)
Abstract	The computer simulation of an ultrasonic transducer is typically an idealized representation of the device and assumes perfectly parallel faces and spatially invariant material properties. In the real world however, these assumptions are not necessarily valid. Fabrication processes such as dicing may result in a quantifiable taper across the height and/or length of a transducer array element. Furthermore, material properties, in particular those for piezoelectric materials, may vary appreciably across the length of an array element. Both of these "parasitic" facts-of-life will impact a device's performance to some extent or another, and in some cases may serve to degrade device performance below acceptable limits. The purpose of this paper is to study and quantify the impact that non-idealized geometries and inhomogeneous material properties have on an ultrasonic transducer's resonant response.
Sponsorship	Ultransonics Ferroelectr., & Frequency Control Soc
Starting Page	1161
Ending Page	1166
File Size	324683
Page Count	6
File Format	PDF
ISBN	0780375823
ISSN	10510117
DOI	10.1109/ULTSYM.2002.1192500
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-08
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Material properties Ultrasonic transducer arrays Ultrasonic transducers Computer simulation Fabrication Piezoelectric transducers Piezoelectric materials Degradation Geometry Resonance
Content Type	Text
Resource Type	Article

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