About: New automatic localization technique of acoustic emission signals in thin metal plates

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In acoustic emission (AE) measurement, the information of the arrival time is very important for event location, event identification and source mechanism analysis. Manual picks are time-consuming and sometimes subjective, especially in the case of large volumes of digital data. Various techniques have been presented in the literature and are routinely used in practice such as amplitude threshold, analysis of the long-term average/short-term average (LTA/STA), high-order statistics or artificial neural networks. A new automatic determination technique of the first arrival times of AE signals is presented for thin metal plates. Based on Akaike's information criterion, proposed algorithm of the first arrival detection uses a specific characteristic function, which is sensitive to change of frequency in contrast to others such as envelope of the signal. The approach is applied to data sets of three different tests. Reliable results show the potential of our approach. In acoustic emission (AE) measurement, the information of the arrival time is very important for event location, event identification and source mechanism analysis. Manual picks are time-consuming and sometimes subjective, especially in the case of large volumes of digital data. Various techniques have been presented in the literature and are routinely used in practice such as amplitude threshold, analysis of the long-term average/short-term average (LTA/STA), high-order statistics or artificial neural networks. A new automatic determination technique of the first arrival times of AE signals is presented for thin metal plates. Based on Akaike's information criterion, proposed algorithm of the first arrival detection uses a specific characteristic function, which is sensitive to change of frequency in contrast to others such as envelope of the signal. The approach is applied to data sets of three different tests. Reliable results show the potential of our approach. (en)
Title	New automatic localization technique of acoustic emission signals in thin metal plates New automatic localization technique of acoustic emission signals in thin metal plates (en)
skos:prefLabel	New automatic localization technique of acoustic emission signals in thin metal plates New automatic localization technique of acoustic emission signals in thin metal plates (en)
skos:notation	RIV/00216305:26220/09:PU76435!RIV10-MSM-26220___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/07/1393), Z(MSM0021630503)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Sedlák, Petr Šikula, Josef
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	Vysoké učení technické v Brně / Fakulta elektrotechniky a komunikačních technologií
http://linked.open...dnocenehoVysledku	329318
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/09:PU76435
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Acoustic emission, First arrival, Akaike's information criterion, Thin metal plates (en)
http://linked.open.../riv/klicoveSlovo	Acoustic emission Akaike's information criterion First arrival Thin metal plates
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[EA127B8DB642]
http://linked.open...i/riv/nazevZdroje	ULTRASONICS
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Nonlinear ultrasonic spectroscopy of magnesium metallic composits and alloys
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	49
http://linked.open...iv/tvurceVysledku	Sedlák, Petr Šikula, Josef Enoki, Manabu Khan, Sabrina A. Hirose, Yuichiro
http://linked.open...n/vavai/riv/zamer	Nové trendy v mikroelektronických systémech a nanotechnologiích (MIKROSYN)
issn	0041-624X
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	26220
is http://linked.open...avai/riv/vysledek of	New automatic localization technique of acoustic emission signals in thin metal plates New automatic localization technique of acoustic emission signals in thin metal plates New automatic localization technique of acoustic emission signals in thin metal plates New automatic localization technique of acoustic emission signals in thin metal plates

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