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A method of improvement of the low-cost rectifiers performance in wideband AC voltmeters and amperemeters

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dc.title A method of improvement of the low-cost rectifiers performance in wideband AC voltmeters and amperemeters en
dc.contributor.author Pospíšilík, Martin
dc.contributor.author Adámek, Milan
dc.relation.ispartof 20th IMEKO World Congress 2012
dc.identifier.isbn 9781627481908
dc.date.issued 2012
utb.relation.volume 3
dc.citation.spage 1738
dc.citation.epage 1741
dc.event.title 20th IMEKO World Congress 2012
dc.event.location Busan
utb.event.state-en South Korea
utb.event.state-cs Jižní Korea
dc.event.sdate 2012-09-09
dc.event.edate 2012-09-14
dc.type conferenceObject
dc.language.iso en
dc.subject Frequency dependence en
dc.subject Rectifier en
dc.subject RMS measurement en
dc.subject Successive approximation en
dc.description.abstract Low cost AC voltmeters and amperemeters usually suffer from dependence of their rectifier parameters on the measured quantities - amplitude and frequency. Special rectifier topologies have been created in order to improve the rectifier behavior. In this paper another approach is discussed. This approach is based on the fact the rectifier is operated with only single amplitude for which it is frequency compensated. The logical circuits, which can be replaced with a microcontroller, set the preamplifier gain in that way the desired reference voltage was reached. Then, the displayed value does not refer to the measured value but to the preamplifier gain setting step. However, this value can be easily converted to match the measured value. Copyright © (2012) by the International Measurement Federation (IMEKO). en
utb.faculty Faculty of Applied Informatics
dc.identifier.uri http://hdl.handle.net/10563/1004679
utb.identifier.scopus 2-s2.0-84880434605
utb.source d-scopus
dc.date.accessioned 2015-06-04T12:54:49Z
dc.date.available 2015-06-04T12:54:49Z
utb.contributor.internalauthor Pospíšilík, Martin
utb.contributor.internalauthor Adámek, Milan
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