About: An SVM Approach with Electromagnetic Methods to Assess Metal Plate Thickness

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.sciencedirect.com/science/article/pii/S0263224114000499#
Description	Eddy current testing (ECT) is a non-destructive technique that can be used in the measurement of conductive material thickness. In this work ECT and a machine learning algorithm (support vector machine - SVM) are used to determine accurately the thickness of metallic plates. The study has been made with ECT measurements on real specimens. At a first stage, a few number of plates is considered and SVM is used for a multi-class classification of the conductive plate thicknesses within a finite number of categories. Several figures of merit were tested to investigate the features that lead to %22good%22 separating hyperplanes. Then, based on a SVM regressor, a reliable estimation of the thickness of a large quantity of plates is tested. Eddy currents are induced by imposing a voltage step in an excitation coil (transient eddy currents - TEC), while a giant magnetoresistance (GMR) is the magnetic sensor that measures the transient magnetic field intensity in the sample vicinity. An experimental validation procedure, including machine training with linear and exponential kernels and classification errors, is presented with sets of samples with thicknesses up to 7,5 mm. Eddy current testing (ECT) is a non-destructive technique that can be used in the measurement of conductive material thickness. In this work ECT and a machine learning algorithm (support vector machine - SVM) are used to determine accurately the thickness of metallic plates. The study has been made with ECT measurements on real specimens. At a first stage, a few number of plates is considered and SVM is used for a multi-class classification of the conductive plate thicknesses within a finite number of categories. Several figures of merit were tested to investigate the features that lead to %22good%22 separating hyperplanes. Then, based on a SVM regressor, a reliable estimation of the thickness of a large quantity of plates is tested. Eddy currents are induced by imposing a voltage step in an excitation coil (transient eddy currents - TEC), while a giant magnetoresistance (GMR) is the magnetic sensor that measures the transient magnetic field intensity in the sample vicinity. An experimental validation procedure, including machine training with linear and exponential kernels and classification errors, is presented with sets of samples with thicknesses up to 7,5 mm. (en)
Title	An SVM Approach with Electromagnetic Methods to Assess Metal Plate Thickness An SVM Approach with Electromagnetic Methods to Assess Metal Plate Thickness (en)
skos:prefLabel	An SVM Approach with Electromagnetic Methods to Assess Metal Plate Thickness An SVM Approach with Electromagnetic Methods to Assess Metal Plate Thickness (en)
skos:notation	RIV/68407700:21720/14:00216306!RIV15-MSM-21720___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED3.1.00/13.0283)
http://linked.open...iv/cisloPeriodika	August
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Král, Jakub
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Univerzitní centrum energeticky efektivních budov
http://linked.open...dnocenehoVysledku	2537
http://linked.open...ai/riv/idVysledku	RIV/68407700:21720/14:00216306
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Eddy current testing; ECT; Giant magneto resistance; GMR; Transient eddy current; Pulsed eddy current; Nondestructive testing; Support vector machine; SVM; Thickness measurement (en)
http://linked.open.../riv/klicoveSlovo	Thickness measurement SVM Support vector machine Nondestructive testing ECT GMR Eddy current testing Giant magneto resistance Pulsed eddy current Transient eddy current
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[2BA6239AE5C4]
http://linked.open...i/riv/nazevZdroje	Measurement
http://linked.open...in/vavai/riv/obor	JB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Intelligent buildings
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	54
http://linked.open...iv/tvurceVysledku	Král, Jakub Ramos, H. G. Ribeiro, A. L. Pasadas, D. Rocha, T.
http://linked.open...ain/vavai/riv/wos	000336613600022
issn	0263-2241
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.measurement.2014.01.035
http://localhost/t...ganizacniJednotka	21720

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