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Russian Journal of Nondestructive Testing
Published in: Russian Journal of Nondestructive Testing 4/2021

01-04-2021 | ACOUSTIC METHODS

Determining the Type of Reflector from Amplitudes of Flares Reconstructed in Various Acoustic Schemes

Authors: E. G. Bazulin, A. Kh. Vopilkin, D. S. Tikhonov

Published in: Russian Journal of Nondestructive Testing | Issue 4/2021

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Abstract—

Methods for recording and analyzing echo signals with the aim of determining the type of a reflector and sizing it have been developed in ultrasonic flaw detection. The digital antenna focusing (DFA) method makes it possible to reconstruct the image of the entire discontinuity boundary using echo signals reflected from the bottom of the test object taking into account wave type transformation. However, this approach is not always applicable in practice, since the shape of the test object bottom may be unknown. Using the features of the behavior of the reflection coefficient for various types of waves, it is possible to draw a conclusion about the reflector type only from normal beam images. Numerical and model experiments have confirmed the efficiency of the approach proposed.
next article Testing the Loading of Bearing Rings with Surface Waves Using Acoustoelasticity Effect

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Metadata
Title
Determining the Type of Reflector from Amplitudes of Flares Reconstructed in Various Acoustic Schemes
Authors
E. G. Bazulin
A. Kh. Vopilkin
D. S. Tikhonov
Publication date
01-04-2021
Publisher
Pleiades Publishing
Published in
Russian Journal of Nondestructive Testing / Issue 4/2021
Print ISSN: 1061-8309
Electronic ISSN: 1608-3385
DOI
https://doi.org/10.1134/S1061830921040021

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