Key comparison CCEM-K7: AC voltage ratio

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DOIResolve DOI: http://doi.org/10.1088/0026-1394/49/1A/01007
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TypeArticle
Journal titleMetrologia
ISSN0026-1394
1681-7575
Volume49
IssueTechnical Supplement
Article number01007
AbstractWe report the results of the international comparison of low-frequency ac voltage ratio: CCEM-K7. The participants made measurements of a unique travelling standard: an inductive voltage divider which provided the 20 ac voltage ratios chosen for the comparison. The nominal ratios chosen were: 0.1 to 0.9, 0.01 and 1/11 to 10/11. Each of the 17 participants measured the in-phase and quadrature components of all 20 ratios at a frequency of 1 kHz, and 7 laboratories made additional, optional, measurements at a frequency of 55 Hz. The report consists of two separate parts: the first part describes the comparison and provides detailed uncertainty budgets for each participant; the second part describes the method used to analyse the results, gives the results of the comparison and tabulates the raw data provided by each participant.
Publication date
LanguageEnglish
AffiliationMeasurement Science and Standards; National Research Council Canada
Peer reviewedYes
NPARC number21277171
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Record identifier3d471dc2-249f-4bdd-9a23-ffcf325da7b8
Record created2016-01-04
Record modified2016-05-09
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