| 摘要 |
Device forming an exploitation assistance tool, for the non-destructive testing of steel products, intended to gather information about possible product imperfections from return signals picked up by ultrasonic transmitter sensors, from ultrasonic receiver sensors forming an arrangement of chosen geometry, mounted with ultrasonic coupling with the product via a liquid medium, with relative rotation/translation movement between the tube and the transducer arrangement, said exploitation tool being characterized in that it comprises: a converter (891; 892) capable of selectively isolating a digital representation of possible echoes in designated time windows, depending on the relative rotation/translation movement, said representation comprising the amplitude and the time of flight of at least one echo, and of generating a parallelepipedal 3D graph, a conversion unit (930) capable of generating a 3D image (901; 902) of possible imperfections in the tube from the 3D graph and from a database, a filter (921; 922), capable of determining, from the images (901; 902), presumed imperfection zones (Zcur), as well as properties of each presumed imperfection, and an output stage configured so as to generate a signal indicating conformity or non-conformity of a product. |
