Apparatus for structural testing of a cylindrical body

G - Physics – 01 – M

Patent

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G01M 99/00 (2011.01) G01N 29/265 (2006.01)

Patent

CA 2598432

Two transducers to be rotated around a circumferential location on a cylindrical body for structural testing of the body are carried on a mounting and drive apparatus including a magnetic attachment which can be manually brought up to a pipe from one side only for fixed connection to the pipe on that side at a position axially spaced from a weld. A collar shaped support for the pair of transducers is formed of a row of separate segments which wrap around the pipe from the one side and is rotated around the axis of the pipe to carry the transducer around the circumferential weld. The segments carry rollers to roll on the surface and are held against the pipe by magnets. The transducers are carried on the support in fixed angular position to track their position but in a manner which allows slight axial or radial movement relative to the pipe.

Deux transducteurs destinés à tourner autour d'un emplacement annulaire d'un corps cylindrique aux fins d'essais de structure dudit corps sont montés sur un dispositif de montage et d'entraînement, y compris une fixation magnétique qui peut être amenée manuellement vers un tuyau d'un côté seulement pour être raccordé de manière fixe au tuyau sur ledit côté, à une position espacée d'une soudure sur le plan axial. Un support en forme de collier pour la paire de transducteurs est formé d'une rangée de segments distincts qui entoure le tuyau d'un côté, et pivote autour de l'axe du tuyau afin de supporter le transducteur autour de la soudure annulaire. Les segments portent des rouleaux sur la surface et sont maintenus contre le tuyau par des aimants. Les transducteurs sont montés sur le support à une position angulaire fixe afin de retracer leur position, mais d'une manière qui permet un léger déplacement sur le plan axial ou le plan radial par rapport au tuyau.

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