Device for the non-destructive testing of hollow tubular...

Details Device for the non-destructive testing of hollow tubular... Device for the non-destructive testing of hollow tubular...

G - Physics

01

N

G01N 29/26 (2006.01) B06B 1/06 (2006.01) G01N 29/00 (2006.01) G01N 29/08 (1995.01)

Patent

CA 2161300

A device for the non-destructive testing of hollow tubular objects by means of ultrasound, comprising, connected to the stage for the transmission of the ultrasonic wave and to the stage for the reception of the ultrasonic signals, a transducer structure which comprises an assembly of annular individual transducers which are juxtaposed in a coaxial fashion or, in an alternative embodiment, two annular arrays, each of which consists of an assembly of juxtaposed individual transducers. Moreover, said stages for the transmission and reception comprise means for the simultaneous selection, from said assembly or from each of said assemblies, at least one transmitter transducer (2(i)) and at least one receiver transducer (2(j)), thus forming a transducer sub-assembly which can be displaced at will by electronic scanning along the axis of the succession of transducers in order to enable optimum execution of the so-called TOFD testing method.

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