Pipe inspection systems

Details Pipe inspection systems Pipe inspection systems

1978-04-14

1980-02-05

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

G01N 2300

Patent

active

041874250

ABSTRACT:
The disclosed invention involves radioactive inspection of tubular pipe passed rotatively and longitudinally relative to an inspection head. A beam of radiation is directed so as to intersect the pipe along a chord where the intersection is spaced a distance "d" on a horizontal radius from the pipe axis, the distance "d" being approximately 0.6 of the radius of the outer pipe wall. A diametrical beam of radiation can be used for comparison purposes.

REFERENCES:
patent: 3683186 (1972-08-01), Tompkins
patent: 4038550 (1977-07-01), Wassen et al.

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