Ultrasonic method and apparatus

Details Ultrasonic method and apparatus Ultrasonic method and apparatus

1980-12-29

1983-07-19

Cangialosi, Sal

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

376249, G21C 1700

Patent

active

043943454

ABSTRACT:
An ultrasonic transducer apparatus and method for examining nuclear reactor jet pump beams for cracking. Examination is conducted in situ. An operator lowers a carriage portion of the apparatus into the reactor vessel with a pole. Ultrasonic signals are transmitted through suitable wiring from an external source to the transducer apparatus, which may employ a pitch-catch or pulse-echo mode of ultrasonic examination to test the beams. The carriage holds oppositely disposed pairs of ultrasonic transducers and positions them suitably near the beam to be examined in a proper orientation thereto. The mode of examination is selected by a switching mechanism. The apparatus includes a signal generator, receiver, and visual display.

REFERENCES:
patent: 3378456 (1968-04-01), Roberts
patent: 3389055 (1968-06-01), Hughes
patent: 3780571 (1973-12-01), Wiesener
patent: 3934457 (1976-01-01), Clark
patent: 3982425 (1976-09-01), McLain
patent: 3988922 (1976-11-01), Clark et al.
patent: 4117733 (1978-10-01), Gugel
patent: 4131018 (1978-12-01), Muller et al.
patent: 4149934 (1979-04-01), Jacobs et al.

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