Influence of selected defect parameter on response signals in swept frequency electromagnetic nondestructive testing

This work deals with eddy current nondestructive testing using swept frequency. A plate specimen made of austenitic steel SUS 316L containing artificial electro-discharged notches is investigated by two eddy current probes. A wide frequency range is used for the experiments while the probes containi...

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Bibliographic Details
Published in2016 ELEKTRO pp. 593 - 596
Main Authors Stubendekova, Andrea, Janousek, Ladislav
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2016
Subjects
Coils
eddy current probe
Eddy currents
experiments
frequency change
influence of length
Nondestructive testing
Probes
Resonant frequency
Signal resolution
Steel
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Summary:This work deals with eddy current nondestructive testing using swept frequency. A plate specimen made of austenitic steel SUS 316L containing artificial electro-discharged notches is investigated by two eddy current probes. A wide frequency range is used for the experiments while the probes containing transmitting and receiving coils are located in fixed position. The amplitude frequency characteristics of the probes are recorded as the response signals. Influence of the defects' length on the response signals is evaluated in order to investigate resolution of the method.
DOI:10.1109/ELEKTRO.2016.7512146