Method for non-destructive ultrasonic testing as well as...

G - Physics – 01 – N

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Details

G01N 29/34 (2006.01) G01S 7/52 (2006.01) G01S 15/89 (2006.01)

Patent

CA 2725592

The invention relates to a method for non-destructive ultrasonic testing, in which ultrasonic pulses with a pulse repetition frequency are radiated by means of an ultrasonic transmitter into a workpiece to be tested and the ultrasonic pulses are reflected to bounding surfaces in the workpiece and the reflected ultra sound is recorded by means of an ultrasonic receiver and the signals are displayed in time- or position- dependent resolution. The method is characterized in that the pulse repetition frequency is changed at least once during the method.

L'invention concerne un procédé pour test par ultrasons non destructif selon lequel des impulsions ultrasoniques avec une fréquence de répétition des impulsions sont rayonnées au moyen d'un émetteur d'ultrasons vers une pièce à tester et les impulsions ultrasoniques sont réfléchies vers des surfaces de séparation de la pièce et l'ultrason réfléchi est enregistré au moyen d'un récepteur d'ultrasons et les signaux sont affichés dans une résolution dépendant du temps ou de la position. Le procédé est caractérisé en ce que la fréquence de répétition des impulsions est modifiée au moins une fois au cours du procédé.

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