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Statements

Subject Item
n2:RIV%2F67985891%3A_____%2F11%3A00371578%21RIV12-AV0-67985891
rdf:type
skos:Concept n10:Vysledek
rdfs:seeAlso
http://www.irsm.cas.cz/abstracts/AGG/03_11/16_Broz.pdf
dcterms:description
A quantitatively new analog-to-digital converter (ADC) module has been developed during 2010, in co-operation with Tedia Ltd. The module has a 28-bit final resolution and uses 32-bit arithmetic. There are two versions, with four and twelve analog inputs. The 4-input module replaces the original 21-bit version, produced until 2009. The 12-input module is intended to be deployed in small-aperture seismic arrays. The whole set consists of four 3-channel detached modules that can be interconnected with the main module using a cable of up to 100 m in length. This design increases signal-to-noise ratio (SNR) by placing the A/D part as close to the seismograph as possible in order to transmit digital data for storage. All channels are sampled coherently so that all four sensors are automatically synchronised. It allows the detection of local events even though the sync-signal is absent. In other words, the 12-input module is suitable for ad-hoc field measurements even in places where there is no GPS signal. All arrays operated by the Institute of Rock Structure and Mechanics (IRSM) are going to be upgraded to use these modules and some new sites will also be set-up with this innovative equipment (e.g. Lazy in Western Bohemia and Dobrá Voda in Slovakia). A quantitatively new analog-to-digital converter (ADC) module has been developed during 2010, in co-operation with Tedia Ltd. The module has a 28-bit final resolution and uses 32-bit arithmetic. There are two versions, with four and twelve analog inputs. The 4-input module replaces the original 21-bit version, produced until 2009. The 12-input module is intended to be deployed in small-aperture seismic arrays. The whole set consists of four 3-channel detached modules that can be interconnected with the main module using a cable of up to 100 m in length. This design increases signal-to-noise ratio (SNR) by placing the A/D part as close to the seismograph as possible in order to transmit digital data for storage. All channels are sampled coherently so that all four sensors are automatically synchronised. It allows the detection of local events even though the sync-signal is absent. In other words, the 12-input module is suitable for ad-hoc field measurements even in places where there is no GPS signal. All arrays operated by the Institute of Rock Structure and Mechanics (IRSM) are going to be upgraded to use these modules and some new sites will also be set-up with this innovative equipment (e.g. Lazy in Western Bohemia and Dobrá Voda in Slovakia).
dcterms:title
A new generation of multichannel seismic apparatus and its practical application in standalone and array monitoring A new generation of multichannel seismic apparatus and its practical application in standalone and array monitoring
skos:prefLabel
A new generation of multichannel seismic apparatus and its practical application in standalone and array monitoring A new generation of multichannel seismic apparatus and its practical application in standalone and array monitoring
skos:notation
RIV/67985891:_____/11:00371578!RIV12-AV0-67985891
n10:predkladatel
n16:ico%3A67985891
n3:aktivita
n15:P n15:Z
n3:aktivity
P(GA103/07/1522), Z(AV0Z30460519)
n3:cisloPeriodika
3
n3:dodaniDat
n14:2012
n3:domaciTvurceVysledku
n13:9206957 n13:5380774
n3:druhVysledku
n6:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
183941
n3:idVysledku
RIV/67985891:_____/11:00371578
n3:jazykVysledku
n7:eng
n3:klicovaSlova
analog-to-digital converter; seismic array; weak event
n3:klicoveSlovo
n9:analog-to-digital%20converter n9:weak%20event n9:seismic%20array
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[9586293C0EE7]
n3:nazevZdroje
Acta geodynamica et geomaterialia
n3:obor
n20:DC
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n12:GA103%2F07%2F1522
n3:rokUplatneniVysledku
n14:2011
n3:svazekPeriodika
8
n3:tvurceVysledku
Štrunc, Jaroslav Brož, Milan
n3:wos
000295860500016
n3:zamer
n8:AV0Z30460519
s:issn
1214-9705
s:numberOfPages
8