Harmonic and pulsed eddy current testing methods as tools for surface and subsurface defect evaluation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F18%3A43954300" target="_blank" >RIV/49777513:23220/18:43954300 - isvavai.cz</a>

Result on the web

<a href="http://iris.elf.stuba.sk/cgi-bin/jeeec?act=pr&no=5_118" target="_blank" >http://iris.elf.stuba.sk/cgi-bin/jeeec?act=pr&no=5_118</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/jee-2018-0058" target="_blank" >10.2478/jee-2018-0058</a>

Result language

angličtina

Original language name

Harmonic and pulsed eddy current testing methods as tools for surface and subsurface defect evaluation

Original language description

In most publications eddy current testing (ECT) methods are said to be suitable for surface defects up to several millimeters. This paper aims to evaluate the detection capabilities of eddy current testing based on two examples of modern approach. One of them is a harmonic eddy current method with use of wavelet transformation and neural network. The second method is pulsed eddy current testing (PECT) with use of evaluation script based on cross-correlation of measured data with the set of known reference signals. Two samples with five artificial defects each were investigated from the near and far side. Geometric parameters of every defect were then estimated. Results show that both methods are limited by the skin effect. However, the PECT with use of cross-correlation exhibits detection capabilities of subsurface defects in significant depth. On the other hand, harmonic eddy current testing shows lower errors in dimensions estimation for set of surface defects.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Electrical Engineering = Elektrotechnický časopis

ISSN

1335-3632

e-ISSN

—

Volume of the periodical

69

Issue of the periodical within the volume

5

Country of publishing house

SK - SLOVAKIA

Number of pages

5

Pages from-to

395-399

UT code for WoS article

000453413200011

EID of the result in the Scopus database

2-s2.0-85059583244