Technical Diagnostics and Non-Destructive Testing, 2024, №03



2024 №03 (08)

DOI of Article 10.37434/tdnk2024.03.01

2024 №03 (02)

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Technical Diagnostics and Non-Destructive Testing #3, 2024, pp. 3-8

Effectiveness of the technology of automated EDDY flaw detection with matrix converters

Ju.Ju. Lysenko¹, Ju.V. Kuts¹, J. Mirchev², O.E. Levchenko¹, S.M. Glabets³

¹NTUU «Igor Sikorsky Kyiv Polytechnic Institute». 37 Beresteysky Ave., 03056, Kyiv, Ukraine. E-mail: j.lysenko@kpi.ua, y.kuts@ukr.net
²Institute of Mechanics of Bulgarian Academy of Sciences. Acad. G. Bontchev St., bl. 4 1113 Sofia, Bulgaria. E-mail: mirchev@imbm.bas.bg
³Laboratory of SC LLC «SPF «Diagnostychni prylady». 103 Patiotyv Str., 03061, Kyiv. E-mail: s.glabets@gmail.com

The effectiveness of application of matrix converter method at eddy current testing (ECT) is studied in the work. Advantages of eddy current matrix application are analyzed, which include improvement of sensitivity to small defects, shortening of the total control time and improvement of the probability of detection of various types of defects. To evaluate their effectiveness, a dimensionless coefficient is proposed, which takes into account the inspection time, the reliability of defect detection, and the sensitivity to defects of a certain size. Experimental studies on samples with artificially induced defects of different dimensions, types and orientation confirmed the rationality of application of this coefficient for testing parameter optimization, in order to improve defect detection in structural elements. The influence of various factors, such as condition of the surface, sensor configuration in the matrix and verification parameters on the productivity of ECT hardware and software with matrix converters was additionally analyzed. Obtained results will promote better understanding of the possibilities and limitations of matrix application in ECT of the components of transport, aviation and military equipment. It will allow optimizing the strategies of checking the controlled products, improving the reliability of defect detection and general maintenance practices in many industries. 16 Ref., 2 Tabl., 5 Fig.
Keywords: automated eddy current control, converter matrix, effectiveness, mathematical modelling, flaw detection, signal processing, numerical methods

Received: 31.07.2024
Received in revised form: 30.08.2024
Accepted: 30.09.2024

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