Method and device for scanning by means of a focused ultrasonic

Details Method and device for scanning by means of a focused ultrasonic Method and device for scanning by means of a focused ultrasonic

1978-05-12

1979-11-13

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73633, G01N 2904

Patent

active

041738993

ABSTRACT:
A segment C' located in a medium constituted by a test-piece is scanned by means of a focused ultrasonic beam formed by a focusing transducer which is immersed in a couplant fluid such as water. In order to displace a focal point of the ultrasonic beam within the test-piece and to scan the segment C', the focus of the transducer is displaced in translational motion along a curve segment C which is the optical image of the segment C' in the interface between the test-piece and the couplant fluid.

REFERENCES:
patent: 2846875 (1958-08-01), Grabendorfer
patent: 3575042 (1971-04-01), Lovelace
patent: 3592052 (1971-07-01), Giacomo et al.
patent: 3673860 (1972-07-01), Flaherty et al.

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