A dual-channel calibration system for AC currents and small AC voltages

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DOIResolve DOI: http://doi.org/10.1109/TIM.2015.2408801
AuthorSearch for:
TypeArticle
Proceedings titleInstrumentation and Measurement, IEEE Transactions on
Conference29th Conference on Precision Electromagnetic Measurements, CPEM 2014, 24 August 2014 through 29 August 2014
ISSN0018-9456
Issue99
Pages16; # of pages: 6
SubjectTerms-AC voltage measurement; AC current measurement; current comparator; digital sampling; calibration; measurement uncertainty
AbstractA new current-comparator-based dual-channel calibration system for AC currents and AC voltages in the millivolt range has been developed. The range of generated currents is 1 rnA - 5 A, and the range of generated voltages is 1 mV- 500 mV. The calibration system in-phase and quadrature expanded measurement uncertainties (k=2) are within 25·10"6 Although the system has been developed primarily for operation at power frequencies, it is also capable of operating at frequencies up to 1000 Hz with slightly increased uncertainties. The traceability to SI units is established through the calibration of AC voltage by means of AC/DC transfer and DC voltage reference, standard resistor, capacitor, and current comparator ratios.
Publication date
LanguageEnglish
AffiliationMeasurement Science and Standards; National Research Council Canada
Peer reviewedYes
NPARC number21274925
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Record identifier9b02d2a0-8d90-4a66-afdd-e5815c3562f3
Record created2015-04-29
Record modified2016-05-09
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