Pipe surface testing carriage

Details Pipe surface testing carriage Pipe surface testing carriage

G - Physics

01

N

324/74.2

G01N 27/82 (2006.01) G01N 27/90 (2006.01)

Patent

CA 1122657

ABSTRACT OF THE DISCLOSURE An apparatus for determining the precise location of faults in a pipeline, e.g. for use after a travelling pig has indicated the area of a pipeline containing a fault, comprises rail structures, the ends of which are received in end pieces. The end pieces receive releasable buckled straps, by means of which the apparatus may be releasably secured to a pipeline. A detector mounting means is movable along the rails, and carries a detector such as a gaussmeter, in a slot extending across the detector mounting means. The bottom surface of the detector mounting means receives the sensor at a constant spacing from the pipe surface, so that the detector can be moved across the pipe surface, by moving the detector assembly along the rail structures and by moving the detector along the detector mounting means, to determine the location of surface imperfections.

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