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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Electrical Engineering = Elektrotechnický časopis

ISSN

1335-3632

e-ISSN

—

Svazek periodika

69

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

5

Strana od-do

395-399

Kód UT WoS článku

000453413200011

EID výsledku v databázi Scopus

2-s2.0-85059583244