About: Fracture related electromagnetic emission measurement and excess noise analysis of reinforced composites

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Electrical properties of several types of reinforced composites were investigated. AC and DC resistivities were measured, and the frequency behavior along with parasitic components was put together in order to create equivalent electrical circuit. It was used for electrical noise measurement corrections. It turns out that samples produces high level Johnson-Nyquist noise and 1/f noise when current bias is applied. We have discovered that electrical contact metallization affects directly the 1/f noise and the bulk material is responsible for white-like Johnson-Nyquist noise. We managed to get information about the suitability of the various metals in view of noise generation and the silver conductive pint seems to be proper chose. Finally, the electromagnetic emission signal, which in turn depends on cracks, was measured and comparison with conventional acoustic emission was put forward. Electrical properties of several types of reinforced composites were investigated. AC and DC resistivities were measured, and the frequency behavior along with parasitic components was put together in order to create equivalent electrical circuit. It was used for electrical noise measurement corrections. It turns out that samples produces high level Johnson-Nyquist noise and 1/f noise when current bias is applied. We have discovered that electrical contact metallization affects directly the 1/f noise and the bulk material is responsible for white-like Johnson-Nyquist noise. We managed to get information about the suitability of the various metals in view of noise generation and the silver conductive pint seems to be proper chose. Finally, the electromagnetic emission signal, which in turn depends on cracks, was measured and comparison with conventional acoustic emission was put forward. (en)
Title	Fracture related electromagnetic emission measurement and excess noise analysis of reinforced composites Fracture related electromagnetic emission measurement and excess noise analysis of reinforced composites (en)
skos:prefLabel	Fracture related electromagnetic emission measurement and excess noise analysis of reinforced composites Fracture related electromagnetic emission measurement and excess noise analysis of reinforced composites (en)
skos:notation	RIV/00216305:26220/14:PU110337!RIV15-MSM-26220___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0072), P(EE2.3.30.0039)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Šicner, Jiří Koktavý, Pavel Macků, Robert Trčka, Tomáš
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	17406
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/14:PU110337
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Reinforced composites, electromagnetic emission, excess noise, contact noise. (en)
http://linked.open.../riv/klicoveSlovo	Reinforced composites contact noise. excess noise electromagnetic emission
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[D55A332E4E8C]
http://linked.open...i/riv/nazevZdroje	Procedia Materials Science
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Excellent young researcher at BUT Centre of sensor, information and communication systems
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	2014
http://linked.open...iv/tvurceVysledku	Koktavý, Pavel Macků, Robert Trčka, Tomáš Šicner, Jiří
issn	2211-8128
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	26220

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