About: Evaluation of characteristics of an HV electrometric amplifier with low input current

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In certain special applications, for example in various fields of chemistry, it is necessary to measure voltage in the order of hundreds of volts from a high-impedance source. Standard electrometric operational amplifiers cannot be used as their input range is limited to the maximum of ten volts. Furthermore, it is impossible to increase the input range by a voltage divider in situations when the required input resistance is, for example, 10^14 Ohm. A common resistive divider in the input of an operational amplifier typically shows the maximum input resistance of 10^12 Ohm. A special circuit arrangement can be used in which the amplifier supply voltage is dynamically shifted with the input voltage. This configuration saves the high input resistance of the applied electrometric amplifier and extends the input voltage range to the desired value. In our configuration, the extended range is +-300 V. The proposed design of an HV electrometric amplifier utilizes a high-voltage differential amplifier, which In certain special applications, for example in various fields of chemistry, it is necessary to measure voltage in the order of hundreds of volts from a high-impedance source. Standard electrometric operational amplifiers cannot be used as their input range is limited to the maximum of ten volts. Furthermore, it is impossible to increase the input range by a voltage divider in situations when the required input resistance is, for example, 10^14 Ohm. A common resistive divider in the input of an operational amplifier typically shows the maximum input resistance of 10^12 Ohm. A special circuit arrangement can be used in which the amplifier supply voltage is dynamically shifted with the input voltage. This configuration saves the high input resistance of the applied electrometric amplifier and extends the input voltage range to the desired value. In our configuration, the extended range is +-300 V. The proposed design of an HV electrometric amplifier utilizes a high-voltage differential amplifier, which (en)
Title	Evaluation of characteristics of an HV electrometric amplifier with low input current Evaluation of characteristics of an HV electrometric amplifier with low input current (en)
skos:prefLabel	Evaluation of characteristics of an HV electrometric amplifier with low input current Evaluation of characteristics of an HV electrometric amplifier with low input current (en)
skos:notation	RIV/00216305:26220/11:PU93762!RIV12-MSM-26220___
http://linked.open...avai/predkladatel	Fakulta elektrotechniky a komunikačních technologií
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(MSM0021630516)
http://linked.open...iv/cisloPeriodika	2011
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Roubal, Zdeněk
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	198279
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/11:PU93762
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Freezing potencial, Electrometric amplifier (en)
http://linked.open.../riv/klicoveSlovo	Electrometric amplifier Freezing potencial
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[5F7603A62242]
http://linked.open...i/riv/nazevZdroje	Progress In Electromagnetics
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	2011
http://linked.open...iv/tvurceVysledku	Kadlec, Radim Roubal, Zdeněk
http://linked.open...n/vavai/riv/zamer	Zdroje, akumulace a optimalizace využití energie v podmímkách trvale udržitelného rozvoje
issn	1559-9450
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	26220
is http://linked.open...avai/riv/vysledek of	Evaluation of characteristics of an HV electrometric amplifier with low input current Evaluation of characteristics of an HV electrometric amplifier with low input current

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