Title :
A New Method for Measuring the Level Dependence of AC Shunts
Author :
Zhang, Jiangtao ; Pan, Xianlin ; Lin, Jun ; Wang, Lei ; Lu, Zuliang ; Zhang, Deshi
Author_Institution :
Jilin Univ., Changchun, China
Abstract :
We report on a new method for the measurement of the level dependence of the AC-DC difference of current shunts. The method is based on the use of a binary inductive current divider. A method to compare two AC shunts at common ground is described. Measurement results on two 1-A AC shunts, which consist of different numbers of resistors, indicate that the level dependence between 0.5 and 1 A is less than 2 ??A/A with an uncertainty of less than 7 ??A/A from 1 to 100 kHz.
Keywords :
electric current measurement; measurement standards; measurement uncertainty; AC current standard; AC shunt; AC-DC difference; binary inductive current divider; level dependence measurement; AC–DC current transfer; binary inductive current divider (BICD); current shunts; current transformer (CT); level dependence;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2009.2022110
