SAFT imaging of flaws in the rail base blade with consideration of multiple reflections of an ultrasonic pulse from the boundaries of a test object
SAFT imaging of flaws in the rail base blade with consideration of multiple reflections of an ultrasonic pulse from the boundaries of a test object
- New search for: Bazulin, E.G.
- New search for: Bazulin, E.G.
The possibility of obtaining images of type-69 flaws in blades of the railroad rail base is considered. For this purpose, a modification of the SAFT algorithm is proposed, in which, during the calculation of echo-signal delays, multiple reflections of an ultrasonic pulse from the rail boundaries are taken into account. The Fermat principle is used to calculate the delay times. Typical acoustic schemes, each of which can be used to obtain partial flaw images, are determined. Combining the partial images in a final image allows the detection of type-69 flaws. It is shown that the proposed algorithm can be applied for obtaining type-69 images in P65 railroad rails.
Document information
SAFT imaging of flaws in the rail base blade with consideration of multiple reflections of an ultrasonic pulse from the boundaries of a test object
Fehlerabbildung mit SAFT in Schienenfußschneiden unter Beachtung von Mehrfachreflexionen eines Ultraschallimpulses an den Rändern eines Prüfobjekts
Russian Journal of Nondestructive Testing ; 46 , 2 ; 125-136
2010
12 Seiten, 7 Bilder, 22 Quellen
Article (Journal)
English
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