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DC poleHodnotaJazyk
dc.contributor.authorŠvarný, Jiří
dc.date.accessioned2022-12-05T11:00:18Z-
dc.date.available2022-12-05T11:00:18Z-
dc.date.issued2022
dc.identifier.citationŠVARNÝ, J. Measurement of low AC currents by the standard current probe equipped with lock-in amplifier. In Proceedings of the 2022 International Conference on Diagnostics in Electrical Engineering (Diagnostika) : CDEE 2022. Pilsen: University of West Bohemia in Pilsen, 2022. s. nestránkováno. ISBN: 978-1-66548-082-6cs
dc.identifier.isbn978-1-66548-082-6
dc.identifier.uri2-s2.0-85141363698
dc.identifier.urihttp://hdl.handle.net/11025/50537
dc.format4 s.cs
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherUniversity of West Bohemia in Pilsenen
dc.relation.ispartofseriesProceedings of the 2022 International Conference on Diagnostics in Electrical Engineering (Diagnostika) : CDEE 2022en
dc.rights© IEEEen
dc.titleMeasurement of low AC currents by the standard current probe equipped with lock-in amplifieren
dc.typekonferenční příspěvekcs
dc.typeConferenceObjecten
dc.rights.accessopenAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedMost of standard current probes are intended for the measurement of medium or higher currents. Usually, due to limited dynamic range, characteristic sensitivity and inner noise of the probe, it is hardly possible to measure currents lower than 100 mA. The paper deals with the possibility to extend the dynamic range of the current probe by an additional external lock-in amplifier. The paper describes the principle of the lock-in amplifier in general and design of the laboratory fixture of lock-in amplifier based on AD630 circuit as well. The designed amplifier was used to condition the output of the Agilentll46A current probe. The experiment is described in detail. The results show that thanks to the lockin amplifier the currents even lower than 1 mA can be easily detected.en
dc.subject.translatedcurrent probeen
dc.subject.translatedlock-in amplifieren
dc.subject.translateddynamic rangeen
dc.subject.translatedcurrent measurementen
dc.subject.translatednoise suppressionen
dc.identifier.doi10.1109/Diagnostika55131.2022.9905091
dc.type.statusPeer-revieweden
dc.identifier.obd43937047
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