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Statements

Subject Item
n2:RIV%2F68407700%3A21230%2F13%3A00225422%21RIV15-MSM-21230___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
Methods of contactless measurements of electrical quantities represent generally an efficient way of avoiding measurement uncertainties and constructional problems caused by complicated phenomena occurring on the interface electrode electrolyte or electrode-semiconductor. Measurement of electromagnetic field generated by eddy-currents in conductive object is very often used for evaluation of object properties i.e., for diagnostic purposes. The same principle is theoretically applicable for measurement of electrical conductivity of the surface layer in semiconductor based gas concentration sensors. The aim of this article is to prove experimentally feasibility of eddy current methods for conductivity measurement of gas concentration sensors. On the basis of simplified electrical circuit model the optimization of measuring systems parameters is performed and the results of concentration measurement of H-2 and NO2 on laboratory prototype of gas sensor are introduced. Introductory experiments performed on sensor prototype using sophisticated impedance analyzer could serve for further development of the electrode-less semiconductor gas concentration sensors using simple impedance convertor in form of integrated circuit. Methods of contactless measurements of electrical quantities represent generally an efficient way of avoiding measurement uncertainties and constructional problems caused by complicated phenomena occurring on the interface electrode electrolyte or electrode-semiconductor. Measurement of electromagnetic field generated by eddy-currents in conductive object is very often used for evaluation of object properties i.e., for diagnostic purposes. The same principle is theoretically applicable for measurement of electrical conductivity of the surface layer in semiconductor based gas concentration sensors. The aim of this article is to prove experimentally feasibility of eddy current methods for conductivity measurement of gas concentration sensors. On the basis of simplified electrical circuit model the optimization of measuring systems parameters is performed and the results of concentration measurement of H-2 and NO2 on laboratory prototype of gas sensor are introduced. Introductory experiments performed on sensor prototype using sophisticated impedance analyzer could serve for further development of the electrode-less semiconductor gas concentration sensors using simple impedance convertor in form of integrated circuit.
dcterms:title
Using Eddy Current Measuring System for Conductivity Based Gas Sensor Using Eddy Current Measuring System for Conductivity Based Gas Sensor
skos:prefLabel
Using Eddy Current Measuring System for Conductivity Based Gas Sensor Using Eddy Current Measuring System for Conductivity Based Gas Sensor
skos:notation
RIV/68407700:21230/13:00225422!RIV15-MSM-21230___
n3:aktivita
n11:V n11:P
n3:aktivity
P(GAP108/11/1298), V
n3:cisloPeriodika
11
n3:dodaniDat
n18:2015
n3:domaciTvurceVysledku
n12:9724818
n3:druhVysledku
n16:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
113112
n3:idVysledku
RIV/68407700:21230/13:00225422
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Gas Sensor; ITO; Eddy Currents; Impedance Measurement
n3:klicoveSlovo
n5:Eddy%20Currents n5:ITO n5:Gas%20Sensor n5:Impedance%20Measurement
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[9EA6D33012B3]
n3:nazevZdroje
Sensor Letters
n3:obor
n4:JB
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:projekt
n6:GAP108%2F11%2F1298
n3:rokUplatneniVysledku
n18:2013
n3:svazekPeriodika
11
n3:tvurceVysledku
Ďaďo, Stanislav Jirešová, J. J. Hofmann, J. H. Seidl, J. S.
n3:wos
000335871700009
s:issn
1546-198X
s:numberOfPages
8
n8:doi
10.1166/sl.2013.3055
n7:organizacniJednotka
21230