Title :
Design, Modeling, and Verification of High-Performance AC–DC Current Shunts From Inexpensive Components
Author :
Lind, Kåre ; Sorsdal, T. ; Slinde, Harald
Author_Institution :
Justervesenet-Norwagian Metrology Service, Kjeller
Abstract :
A new type of AC current shunt for AC-DC current transfer is presented for which the AC-DC current differences at frequencies from 10 to 100 kHz are calculated with uncertainties smaller than plusmn 9 muA/A in the current range of 30 mA-10 A. This is an independent realization of the AC-DC current-transfer standards in addition to the step-up method used at most National Metrology Institutes. The construction, modeling, and experimental verification of the shunts are described.
Keywords :
convertors; electric current measurement; ac-dc current shunts; ac-dc current-transfer; capacitance; current measurement; thermal current converters; Analog-digital conversion; Capacitance; Coaxial components; Current measurement; Frequency; Magnetic field measurement; Metrology; Resistors; Transistors; Uncertainty; AC current; ac–dc difference; analog design; current measurement; current shunts;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2007.908602
