Institut De Radioprotection Et De Surete Nucleaire

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Commissariat a L'energie Atomique

Gérard Cattiaux

Olivier Casula

Jean-Marc Decitre

A device for detection of at least one defect in a concave or convex structure including an emitting part and a receiving part, in which the emitting part includes at least one current layer that makes it possible to create currents oriented approximately along a same direction as the defects whose influence is to be minimized and the receiving part includes at least one magnetic field receiver, added on or etched on a flexible support.

Device for detection of at least one defect in a concave or convex structure

Ultrasonic contact transducer with multiple ultrasonic emitting elements and means of bringing these elements into contact. This transducer is applicable particularly to non-destructive testing and comprises means () for bringing elements () into contact with an object () to be checked and means (, andto) of determining the positions of elements relative to the object, using means bringing elements into contact, to determine delay laws to be applied to excitation pulses of the elements, to generate a focussed ultrasonic beam (F).

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Chateaufort, France

Gérard Cattiaux