This HTML5 document contains 42 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
n3http://localhost/temp/predkladatel/
n18http://linked.opendata.cz/resource/domain/vavai/riv/tvurce/
n6http://linked.opendata.cz/ontology/domain/vavai/
n16http://linked.opendata.cz/resource/domain/vavai/vysledek/RIV%2F60162694%3AG43__%2F10%3A00445805%21RIV12-MO0-G43_____/
n12http://linked.opendata.cz/resource/domain/vavai/zamer/
shttp://schema.org/
skoshttp://www.w3.org/2004/02/skos/core#
rdfshttp://www.w3.org/2000/01/rdf-schema#
n4http://linked.opendata.cz/ontology/domain/vavai/riv/
n2http://linked.opendata.cz/resource/domain/vavai/vysledek/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n8http://linked.opendata.cz/ontology/domain/vavai/riv/klicoveSlovo/
n13http://linked.opendata.cz/ontology/domain/vavai/riv/duvernostUdaju/
xsdhhttp://www.w3.org/2001/XMLSchema#
n15http://linked.opendata.cz/ontology/domain/vavai/riv/aktivita/
n9http://linked.opendata.cz/ontology/domain/vavai/riv/jazykVysledku/
n17http://linked.opendata.cz/ontology/domain/vavai/riv/obor/
n5http://linked.opendata.cz/ontology/domain/vavai/riv/druhVysledku/
n10http://reference.data.gov.uk/id/gregorian-year/

Statements

Subject Item
n2:RIV%2F60162694%3AG43__%2F10%3A00445805%21RIV12-MO0-G43_____
rdf:type
n6:Vysledek skos:Concept
rdfs:seeAlso
http://vavtest.unob.cz/registr
dcterms:description
The ultrasound excitation uses harmonic signals with relatively near or distant frequencies as using of mixing or modulation principle. This paper presents comparison of these two basic methods and it asks new possibilities for rising of sensitivity. Especially a necessary time for the exciting and sensing signals is compared. The second part discusses possibility of using of the burst-wave exciting mode for these methods. First, the excitation by phase coupled pulse signals is derived for obtaining of result long lime signal without waste of its useful energy. Nevertheless this output long time signal consists from time-separated pulses and therefore the analog prefiltration cannot be used for suppression of excitation signals. Therefore the new variant of mixing method is derived, where such exciting frequencies are used, that result signal with difference frequency has a relatively high frequency and a shorter period then the exciting signal. The ultrasound excitation uses harmonic signals with relatively near or distant frequencies as using of mixing or modulation principle. This paper presents comparison of these two basic methods and it asks new possibilities for rising of sensitivity. Especially a necessary time for the exciting and sensing signals is compared. The second part discusses possibility of using of the burst-wave exciting mode for these methods. First, the excitation by phase coupled pulse signals is derived for obtaining of result long lime signal without waste of its useful energy. Nevertheless this output long time signal consists from time-separated pulses and therefore the analog prefiltration cannot be used for suppression of excitation signals. Therefore the new variant of mixing method is derived, where such exciting frequencies are used, that result signal with difference frequency has a relatively high frequency and a shorter period then the exciting signal.
dcterms:title
The New High Sensitive Variant of Nonlinear Ultrasound Spectroscopy for Nondestructive Testing The New High Sensitive Variant of Nonlinear Ultrasound Spectroscopy for Nondestructive Testing
skos:prefLabel
The New High Sensitive Variant of Nonlinear Ultrasound Spectroscopy for Nondestructive Testing The New High Sensitive Variant of Nonlinear Ultrasound Spectroscopy for Nondestructive Testing
skos:notation
RIV/60162694:G43__/10:00445805!RIV12-MO0-G43_____
n4:aktivita
n15:Z
n4:aktivity
Z(MO0FVT0000403)
n4:cisloPeriodika
1
n4:dodaniDat
n10:2012
n4:domaciTvurceVysledku
n18:5513820
n4:druhVysledku
n5:J
n4:duvernostUdaju
n13:S
n4:entitaPredkladatele
n16:predkladatel
n4:idSjednocenehoVysledku
274686
n4:idVysledku
RIV/60162694:G43__/10:00445805
n4:jazykVysledku
n9:eng
n4:klicovaSlova
NDT; non-linear spectroscopy; modulation; ultrasound; cracks; pulse exciting
n4:klicoveSlovo
n8:modulation n8:cracks n8:non-linear%20spectroscopy n8:NDT n8:pulse%20exciting n8:ultrasound
n4:kodStatuVydavatele
CZ - Česká republika
n4:kontrolniKodProRIV
[1039B7B523B3]
n4:nazevZdroje
Advances in Military Technology
n4:obor
n17:KA
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
2
n4:rokUplatneniVysledku
n10:2010
n4:svazekPeriodika
Vol..4
n4:tvurceVysledku
Šikula, Josef Hájek, Karel
n4:zamer
n12:MO0FVT0000403
s:issn
1802-2308
s:numberOfPages
8
n3:organizacniJednotka
G43