Non-destructive evaluation of conductive materials by eddy current swept frequency technique

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F15%3A43925801" target="_blank" >RIV/49777513:23220/15:43925801 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.compumag2015.com/Pdfs%20of%20Short%20Papers%20by%20Session/PA6%5CPA6-9%20Stubendekova-Non-destructive%20Evaluation%20of%20Conductive%20Materials.pdf" target="_blank" >http://www.compumag2015.com/Pdfs%20of%20Short%20Papers%20by%20Session/PA6%5CPA6-9%20Stubendekova-Non-destructive%20Evaluation%20of%20Conductive%20Materials.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Non-destructive evaluation of conductive materials by eddy current swept frequency technique

Popis výsledku v původním jazyce

Novel approach in continuous non-destructive evaluation of conductive materials is concerned in the paper. Swept frequency excitation is employed to drive eddy currents in a conductive object. A conductive plate made of austenitic steel with artificial electro discharge machined notches is inspected in this study. The notches differ in depth. Various eddy current probes are employed for the inspection in order to evaluate their resolution characteristics concerning the depth of a detected defect. An eddy current probe is fixed at a certain position during the inspection, while the frequency of harmonic exciting current is changed in a wide range. Induced voltage in a pick-up coil of a probe is sensed. Frequency characteristics of the induced voltage for different notches are evaluated in order to assess the resolution capabilities. Numerical model of inspection is created in LTspice and COMSOL Multiphysics softwares and it connects a model of high frequency coil with a measurement chai

Název v anglickém jazyce

Non-destructive evaluation of conductive materials by eddy current swept frequency technique

Popis výsledku anglicky

Novel approach in continuous non-destructive evaluation of conductive materials is concerned in the paper. Swept frequency excitation is employed to drive eddy currents in a conductive object. A conductive plate made of austenitic steel with artificial electro discharge machined notches is inspected in this study. The notches differ in depth. Various eddy current probes are employed for the inspection in order to evaluate their resolution characteristics concerning the depth of a detected defect. An eddy current probe is fixed at a certain position during the inspection, while the frequency of harmonic exciting current is changed in a wide range. Induced voltage in a pick-up coil of a probe is sensed. Frequency characteristics of the induced voltage for different notches are evaluated in order to assess the resolution capabilities. Numerical model of inspection is created in LTspice and COMSOL Multiphysics softwares and it connects a model of high frequency coil with a measurement chai

Druh

O - Ostatní výsledky

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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