Method and apparatus for acoustic scanning using bulk wave scatt

Details Method and apparatus for acoustic scanning using bulk wave scatt Method and apparatus for acoustic scanning using bulk wave scatt

1980-06-03

1982-05-18

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

73627, 73642, G01N 2904

Patent

active

043298761

ABSTRACT:
Electronically focused and automatically scanning acoustic bulk waves are produced by scattering chirp acoustic bulk waves at grazing incidence from an acoustic grating. The same apparatus may be used in reverse to convert diverging acoustic bulk waves produced by a focused beam into chirp acoustic bulk waves. A pulse compression filter then converts the chirp waves into signals describing the source.

REFERENCES:
patent: 3283264 (1966-11-01), Papadakis
patent: 3400341 (1968-09-01), Sittig
patent: 4011747 (1977-03-01), Shaw

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