Apparatus for ultrasonic inspection of the welding seam of large

Details Apparatus for ultrasonic inspection of the welding seam of large Apparatus for ultrasonic inspection of the welding seam of large

1977-02-10

1978-12-26

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

041310276

ABSTRACT:
A pipe is reeled onto and over a stand having several positioning rollers to serve as reference for the pipe inspection devices. These devices include a plurality of transducers for longitudinal flaw detection arranged in pairs and along opposite sides of the seam, the transducers being in water tanks hung in gimbals on individual swing arms. Four additional transducers for transverse flaw detection are arranged in a tank hung also in gimbals for positioning the tanks so that it engages the seam while the transducers are aligned with the seam. A gimbal hung tank with two edge probing transducers engages lastly the pipe seam.

REFERENCES:
patent: 3213676 (1965-10-01), Makous
patent: 3289468 (1966-12-01), Van der Veer et al.
patent: 3350925 (1967-11-01), Coy
patent: 3371524 (1968-03-01), Wloszek
patent: 3472064 (1969-10-01), Kortenhoven
patent: 3575044 (1971-04-01), Gibbs et al.
patent: 3952582 (1976-04-01), Graham et al.

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