Ultrasonic testing of fitting assembly for fluid conduits...

Details Ultrasonic testing of fitting assembly for fluid conduits... Ultrasonic testing of fitting assembly for fluid conduits...

G - Physics

01

N

G01N 29/46 (2006.01) G01B 17/00 (2006.01) G01N 29/11 (2006.01)

Patent

CA 2490234

Hand-held apparatus and method for determining relative and/or absolute axial position of a conduit end within a fluid coupling includes application of input ultrasonic energy in the form of transient shear waves and analyzing the reflected energy. Application of the input energy collected at different radial positions about a first axial location is used with wavelet based correlation techniques to better analyze the reflected energy signals. Quality of the abutment between the conduit end and a surface associated with the coupling may also be determined as a separate or combined feature of the axial position determination.

L'invention porte sur un appareil et un procédé permettant de déterminer la position axiale relative ou absolue de l'extrémité d'un tube, où circule un fluide, à l'intérieur d'un raccord, consistant à lui appliquer de l'énergie ultrasonore sous forme d'ondes transitoires de cisaillement, puis à analyser l'énergie réfléchie. L'application de l'énergie en différentes positions radiales autour du premier emplacement axial, associée à des techniques de corrélation permet de mieux analyser les signaux d'énergie réfléchie. On peut également déterminer la qualité de butée entre l'extrémité du tube et une surface associée au raccord, qui constitue un élément séparé ou combiné de la détermination de la position axiale.

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