Method and apparatus for ultrasonic testing of an object

Details Method and apparatus for ultrasonic testing of an object Method and apparatus for ultrasonic testing of an object

G - Physics

01

N

G01N 29/00 (2006.01) G01N 29/24 (2006.01) G01N 29/44 (2006.01)

Patent

CA 2543261

A method for ultrasonic testing of an object, wherein at least one test moment an ultrasonic test signal (S1, S2) is transmitted into the object (2), while after a particular verification period (.DELTA.t1, .DELTA.t2) measured from said test moment, an ultrasonic verification signal (S1~, S2~) is transmitted into the object (2), a possible echo of said test signal (S1, S2) being received from said object (2) at a particular first measuring moment, the possible echo being accepted as being the echo (E1, E2) of said test signal (S1, S2) only when the echo (E1~, E2~) of the verification signal is received at a particular second measuring moment. In addition, the invention provides an apparatus, evidently intended and designed for carrying out such a method and a use of such an apparatus.

L'invention concerne un procédé de contrôle par ultrasons d'un objet, consistant à émettre à au moins un moment de contrôle un signal (S1, S2) de contrôle ultrasonore dans l'objet (2), puis après une période (.DELTA.t1, .DELTA.t2) de vérification spécifique mesurée à partir de ce moment de contrôle, à émettre un signal (S1', S2') de vérification ultrasonore dans l'objet (2). Un écho éventuel dudit signal de contrôle (S1, S2) est reçu en provenance dudit objet (2) à un premier moment de mesure spécifique, et cet écho éventuel n'est reconnu comme étant l'écho (E1, E2) du signal de contrôle (S1, S2) uniquement lorsque l'écho (E1', E2') du signal de vérification a été reçu à un second moment de mesure spécifique. L'invention concerne en outre un appareil destiné à, et conçu pour la mise en oeuvre d'un tel procédé, ainsi que l'utilisation de cet appareil.

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