DocumentCode :
969325
Title :
Grating acoustic scanner using bulk acoustic waves
Author :
Chen, W.H. ; Lean, E.G.
Author_Institution :
IBM Thomas J. Watson Research Center, Yorktown Heights, USA
Volume :
17
Issue :
3
fYear :
1981
Firstpage :
141
Lastpage :
143
Abstract :
A new type of electronically scanned and focused acoustic beam scanner, based on coherent scattering of a grazing incident bulk wave with chirped frequencies by an array of surface grooves, is discussed. Experimental results of a 40 MHz bulk wave grating acoustic scanner with 1" field of view and 300 ¿m lateral resolution will be presented as a feasibility demonstration.
Keywords :
acoustic imaging; surface acoustic wave devices; acoustic beam scanner; bulk acoustic waves; chirped frequencies; coherent scattering; surface groove arrays;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19810100
Filename :
4245562
Link To Document :
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