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Acoustic Gaussian Far-Field PatternGaussian profile achieved by using annular electrodes. Transducer constructed by deposting circularly symmetric metallic multielectrode array on 12.7 mm diameter X-cut quartz disk. Each electrode independently connected to impedance network optimized to produce Gaussian distribution with less than 2 percent error. Ultrasonic transducer produces far field beam with Gaussian spatial profile for materials evaluation applications.
Document ID
19840000051
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Claus, R. O. (Virginia Polytechnic Institute and State University)
Zerwekh, P. S. (Virginia Polytechnic Institute and State University)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: NASA Tech Briefs
Volume: 8
Issue: 3
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
LAR-12967
Accession Number
84B10051
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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