Method and apparatus for providing dynamic focussing and beam st

Details Method and apparatus for providing dynamic focussing and beam st Method and apparatus for providing dynamic focussing and beam st

1978-10-16

1980-07-22

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73642, G01N 2904

Patent

active

042133440

ABSTRACT:
An acoustic lens having nonuniform cross sectional thickness is disposed in the path of an ultrasonic energy search beam traveling from a transducer probe to an object to be examined. In an alternative embodiment the lens has at least one contoured surface. As the lens undergoes motion in a plane substantially normal to the direction of the search beam, the search beam exhibits a varying focal zone depth and beam path for providing real time ultrasonic scanning of the examined object.

REFERENCES:
patent: 2525873 (1950-10-01), De Lano
patent: 3913061 (1975-10-01), Green
patent: 3937066 (1976-02-01), Green et al.
patent: 4044273 (1977-08-01), Kanda et al.
patent: 4061415 (1977-12-01), Taenzer

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