V & M France

Vallourec Tubes France

Frédéric Lesage

Bernard Bisiaux

Sébastien Petit

Renato Nogueira De Paula

Sylvain Deutsch

Nidia Alejandra Segura Rodriguez

Alexandre Noël

Bisiaux Bernard

A non-destructive testing device for pipes is provided. The device extracts information on defects from signals captured by ultrasound receivers following the selective excitation of ultrasound transmitters according to a selected time rule. The receivers form an arrangement with a selected geometry, coupled in an ultrasound fashion, with relative rotation/translation movement, with the pipe. The device includes a converter that selectively isolates a digital representation of echoes in designated time windows, as a function of the movement, and by extracting an image of defects, a filter which determines presumed defect zones and properties of these, a combiner to prepare working digital inputs from an extract of images of a defect zone, a neural circuit receiving the working inputs, a digital decision and alarm stage working on the basis of the output of the neural circuit, and a sorting and marking robot.

Non-destructive testing, in particular for pipes during manufacture or in the finished state

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Saint Saulve, France

Frédéric Lesage