Electronically focused acoustic imaging device
- 1 December 1973
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 23 (11) , 581-583
- https://doi.org/10.1063/1.1654755
Abstract
A new type of acoustic imaging device, which scans a large array of piezoelectric detectors is described. Scanning is carried out by a signal traveling along an acoustic surface wave delay line. The device can be electronically focused, and has given images of objects 20 cm from the detector array, illuminated with a 5‐MHz acoustic wave, with a definition of 1 mm.Keywords
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