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Realization of Absolute Phase and AC Resistance of Current Shunts by Ratio Measurements
RISE - Research Institutes of Sweden, Safety and Transport, Measurement Science and Technology.ORCID iD: 0000-0003-2330-9898
RISE - Research Institutes of Sweden, Safety and Transport, Measurement Science and Technology.
2019 (English)In: IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, E-ISSN 1557-9662, Vol. 68, no 6, p. 2041-2046Article in journal (Refereed) Published
Abstract [en]

This paper presents a simplified method for realizing absolute phase and ac resistance for current shunts using only impedance ratio measurements. The method is based on three geometrically identical current shunts with different resistances, but with the same inductance, capacitance, and ac-dc resistance change of resistance at ac compared to dc). We demonstrate how the inductance, capacitance, and ac resistance can be calculated from the complex impedance ratio measurements, therefore realizing absolute current shunt impedance. The method gives competitive uncertainties of around 200 μΩ/Ω for amplitude and 400 μrad for phase at 1 MHz in the 1-Ω range.

Place, publisher, year, edition, pages
2019. Vol. 68, no 6, p. 2041-2046
Keywords [en]
Impedance, Resistance, Current measurement, Impedance measurement, Electrical resistance measurement, Capacitance, Inductance, current shunt, measurement standards, phase measurement, resistance.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-38595DOI: 10.1109/TIM.2018.2882927OAI: oai:DiVA.org:ri-38595DiVA, id: diva2:1314767
Available from: 2019-05-09 Created: 2019-05-09 Last updated: 2019-07-01Bibliographically approved

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Bergsten, Tobias

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