Measurement method of AC current up to 1 MHz

Dominique Fortuné, Daniela Istrate, François Ziadé, Isabelle Blanc

Abstract

Wideband current transducers with a voltage output are often used to measure AC currents at frequencies up to 1 MHz. The ratio of output voltage to primary current as a function of frequency is the calibration result of these transducers. A traceable method to measure 1 A alternating current at frequencies of 100 kHz and 1 MHz is reported in this paper. The ratio of the wideband current transducer is obtained with expanded uncertainties of 1.3 % for 1 A, 100 kHz and of 2.0 % for 1 A, 1 MHz.

Keywords

Wideband current transducer; AC current; Radio frequency; Traceability

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IMEKO-TC4-2014-265.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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