Bilateral international inductance comparison using traveling standards in thermoregulated enclosures

Standards with toroidal windings are traditionally used for international comparisons of inductance. The achieved uncertainties of the comparisons are dominated by the rather high temperature coefficient of the traveling standards. Hence, thermoregulated enclosures were developed at PTB a few years...

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Published in2016 Conference on Precision Electromagnetic Measurements (CPEM 2016) pp. 1 - 2
Main Authors Funck, Torsten, Bothe, Harald, Kolling, Axel, Satrapinski, Alexandre, Suomalainen, Esa-Pekka
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2016
Subjects
Inductance
Inductors
Measurement uncertainty
Ocean temperature
Temperature control
Uncertainty
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Summary:Standards with toroidal windings are traditionally used for international comparisons of inductance. The achieved uncertainties of the comparisons are dominated by the rather high temperature coefficient of the traveling standards. Hence, thermoregulated enclosures were developed at PTB a few years ago. These have now been refined and their suitability for the transportation of standards has been proven in a bilateral comparison between PTB and VTT. The agreement was excellent, while the overall uncertainty of the comparison varied from 14 μH/H to 62 μH/H in the frequency range 100 Hz to 2 kHz.
ISSN:2160-0171
DOI:10.1109/CPEM.2016.7540510