Ultrasonic inspection

Details Ultrasonic inspection Ultrasonic inspection

1978-08-14

1980-04-01

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

73644, G01N 2904

Patent

active

041955307

ABSTRACT:
An ultrasonic flaw detector for detecting irregularities in an object, such as a pipe, having a segment of annular cross-section. The detector includes a transducer with an involute transmitting surface for sending ultrasonic signals into the object at equal non-radial angles of incidence. The detector further includes transmission apparatus for maintaining a constant physical relationship between the transducer and the pipe and interpretive apparatus for correlating reflections of ultrasonic signals within the object with irregularities.

REFERENCES:
patent: 2984756 (1961-05-01), Bradfield
patent: 3350925 (1967-11-01), Coy
patent: 3663842 (1972-05-01), Miller
patent: 3693415 (1972-09-01), Whittington
patent: 3739628 (1973-06-01), Saglio
patent: 3791199 (1974-02-01), Toth et al.
patent: 3916675 (1975-11-01), Perdijon
patent: 3924453 (1975-12-01), Clark et al.
patent: 3933026 (1976-01-01), Ham et al.

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