Analysis and improvements of precision coaxial current shunts for direct measurement of ac current

Author

Lapuh, R. ; Pinter, B. ; Voljc, B. ; Svetik, Z. ; Lindic, M.

Author_Institution

Slovenian Inst. for Quality & Metrol., Metrol. Inst. of the Republic of Slovenia, Ljubljana, Slovenia

fYear

2011

fDate

10-12 May 2011

Firstpage

1

Lastpage

4

Abstract

Coaxial current shunts for currents from 10 mA to 20 A have been constructed. They have been calibrated for AC/DC current difference at frequencies up to 30 kHz. A lumped element model was made for each shunt, from which a frequency response and input impedance were derived. Comparison to actual measured frequency response and measured input impedance results show good agreement of the developed model.

Keywords

electric current measurement; electric impedance measurement; frequency measurement; frequency response; AC current direct measurement; AC-DC current difference; coaxial current shunt; current 10 mA to 20 mA; frequency response measurement; input impedance measurement; lumped element model; Current measurement; Frequency measurement; Frequency response; Impedance; Resistance; Resistors; Uncertainty; ac current; ac-dc difference; coaxial shunt; frequency response; modelling;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE

Conference_Location

Binjiang

ISSN

1091-5281

Print_ISBN

978-1-4244-7933-7

Type

conf

DOI

10.1109/IMTC.2011.5944186

Filename

5944186