Calibrating high voltage impedance bridges with low voltages and digital
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INMETRO |
Texto Completo: | http://hdl.handle.net/10926/1643 |
Resumo: | A calibration system for automated high-voltage current-comparator-based capacitance and dissipation factor bridges is presented. The method saves a lot of time and is much flexible as it does not use or require high voltages and high voltage standards. For the calibration, two sinusoidal currents at power frequencies are synthesized with two synchronized signal generators and two resistors, and injected into the bridge inputs. The capacitance ratio and dissipation factor simulated by these currents are calculated from an ac voltage ratio estimated from the digitized data, together with the impedance ratio of the resistors. The ratio and phase displacement of the two sinusoidal voltages are adjusted to simulate any capacitance ratio from 0.1:1 to 100:1 and any dissipation factor from zero to +/- 1 (or more). The method has been applied with success to the calibration of commercial electronic bridges. |
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info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleCalibrating high voltage impedance bridges with low voltages and digital20102012-05-03T16:29:40Z2012-05-03T16:29:40ZA calibration system for automated high-voltage current-comparator-based capacitance and dissipation factor bridges is presented. The method saves a lot of time and is much flexible as it does not use or require high voltages and high voltage standards. For the calibration, two sinusoidal currents at power frequencies are synthesized with two synchronized signal generators and two resistors, and injected into the bridge inputs. The capacitance ratio and dissipation factor simulated by these currents are calculated from an ac voltage ratio estimated from the digitized data, together with the impedance ratio of the resistors. The ratio and phase displacement of the two sinusoidal voltages are adjusted to simulate any capacitance ratio from 0.1:1 to 100:1 and any dissipation factor from zero to +/- 1 (or more). The method has been applied with success to the calibration of commercial electronic bridges.19 p. : il.Submitted by Lívia Oliveira (livia.oliveira2@hotmail.com) on 2012-05-03T16:27:54Z No. of bitstreams: 1 2012_Kyriazis_Gregory.pdf: 1199750 bytes, checksum: 7376e86e701a2589ab06d3f88c1572fa (MD5)Approved for entry into archive by Lívia Oliveira(livia.oliveira2@hotmail.com) on 2012-05-03T16:29:40Z (GMT) No. of bitstreams: 1 2012_Kyriazis_Gregory.pdf: 1199750 bytes, checksum: 7376e86e701a2589ab06d3f88c1572fa (MD5)Made available in DSpace on 2012-05-03T16:29:40Z (GMT). No. of bitstreams: 1 2012_Kyriazis_Gregory.pdf: 1199750 bytes, checksum: 7376e86e701a2589ab06d3f88c1572fa (MD5) Previous issue date: 2010enghttp://hdl.handle.net/10926/1643DMD_hdl_10926/1643KYRIAZIS, Gregory Amaral. Calibrating high voltage impedance bridges with low voltages and digital. In: 2010 NCSL International Workshop and Symposium, 2010, Georgia. Anais.. Georgia : Atlanta, 2010.Kyriazis, Gregory Amaralinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do INMETROinstname:Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO)instacron:INMETRO2012_Kyriazis_Gregory.pdfhttp://xrepo01s.inmetro.gov.br/bitstream/10926/1643/1/2012_Kyriazis_Gregory.pdfapplication/pdf1199750http://xrepo01s.inmetro.gov.br/bitstream/10926/1643/1/2012_Kyriazis_Gregory.pdf7376e86e701a2589ab06d3f88c1572faMD510926_1643_12024-06-10T15:24:51Zoai:xrepo01s.inmetro.gov.br:10926/1643Repositório de Publicaçõeshttp://repositorios.inmetro.gov.br/oai/requestopendoar:2012-05-03T16:29:40Repositório Institucional do INMETRO - Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO)false |
dc.title.none.fl_str_mv |
Calibrating high voltage impedance bridges with low voltages and digital |
title |
Calibrating high voltage impedance bridges with low voltages and digital |
spellingShingle |
Calibrating high voltage impedance bridges with low voltages and digital Kyriazis, Gregory Amaral |
title_short |
Calibrating high voltage impedance bridges with low voltages and digital |
title_full |
Calibrating high voltage impedance bridges with low voltages and digital |
title_fullStr |
Calibrating high voltage impedance bridges with low voltages and digital |
title_full_unstemmed |
Calibrating high voltage impedance bridges with low voltages and digital |
title_sort |
Calibrating high voltage impedance bridges with low voltages and digital |
author |
Kyriazis, Gregory Amaral |
author_facet |
Kyriazis, Gregory Amaral |
author_role |
author |
dc.contributor.author.fl_str_mv |
Kyriazis, Gregory Amaral |
description |
A calibration system for automated high-voltage current-comparator-based capacitance and dissipation factor bridges is presented. The method saves a lot of time and is much flexible as it does not use or require high voltages and high voltage standards. For the calibration, two sinusoidal currents at power frequencies are synthesized with two synchronized signal generators and two resistors, and injected into the bridge inputs. The capacitance ratio and dissipation factor simulated by these currents are calculated from an ac voltage ratio estimated from the digitized data, together with the impedance ratio of the resistors. The ratio and phase displacement of the two sinusoidal voltages are adjusted to simulate any capacitance ratio from 0.1:1 to 100:1 and any dissipation factor from zero to +/- 1 (or more). The method has been applied with success to the calibration of commercial electronic bridges. |
publishDate |
2010 |
dc.date.issued.fl_str_mv |
2010 |
dc.date.available.fl_str_mv |
2012-05-03T16:29:40Z |
dc.date.accessioned.fl_str_mv |
2012-05-03T16:29:40Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10926/1643 DMD_hdl_10926/1643 |
dc.identifier.citation.fl_str_mv |
KYRIAZIS, Gregory Amaral. Calibrating high voltage impedance bridges with low voltages and digital. In: 2010 NCSL International Workshop and Symposium, 2010, Georgia. Anais.. Georgia : Atlanta, 2010. |
url |
http://hdl.handle.net/10926/1643 |
identifier_str_mv |
DMD_hdl_10926/1643 KYRIAZIS, Gregory Amaral. Calibrating high voltage impedance bridges with low voltages and digital. In: 2010 NCSL International Workshop and Symposium, 2010, Georgia. Anais.. Georgia : Atlanta, 2010. |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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openAccess |
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application/pdf |
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Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO) |
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INMETRO |
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Repositório Institucional do INMETRO |
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Repositório Institucional do INMETRO - Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO) |
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