Email this article Pattern-Noise in Ultrasonic Inspection of Articles Made of Complexly Structured Materials
- Authors: Kartashev V.G.1, Kachanov V.K.1, Sokolov I.V.1, Voronkova L.V.2, Kontsov R.V.1
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Affiliations:
- Moscow Power Engineering Institute
- Central Scientific-Research Institute for Precision Machine Engineering
- Issue: Vol 54, No 1 (2018)
- Pages: 17-30
- Section: Acoustic Methods
- URL: https://journals.rcsi.science/1061-8309/article/view/181510
- DOI: https://doi.org/10.1134/S1061830918010047
- ID: 181510
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Abstract
Pattern-noise (PN) that occurs due to combined reflection of an ultrasonic probing signal from acoustic inhomogeneities in the material structure is an interference that conceals echo-signals from flaws. The most efficient method for extracting echo-signals from PN is multichannel spacetime signal processing (STSP). Different inspection purposes dictate different configurations of STSP schemes with the parameters that are determined by PN correlation characteristics. A theoretical model has been used to determine mutual PN correlation characteristics for the main types of transducers. The theoretical results have been confirmed experimentally.
About the authors
V. G. Kartashev
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 111250
V. K. Kachanov
Moscow Power Engineering Institute
Author for correspondence.
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 111250
I. V. Sokolov
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 111250
L. V. Voronkova
Central Scientific-Research Institute for Precision Machine Engineering
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 115088
R. V. Kontsov
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 111250
