A new calibration system for small AC voltages at power frequencies

Author

Djokic, Branislav

Author_Institution

Meas. Sci. & Stand., Nat. Res. Council of Canada, Ottawa, ON, Canada

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

770

Lastpage

771

Abstract

A new current-comparator-based dual-channel calibration system for AC voltages in the millivolt range for operation at power frequencies has been developed. The range of generated voltages is 1 mV - 100 mV. The calibration system in-phase and quadrature expanded measurement uncertainties (k=2) are estimated to be within 25·10⁶. The traceability to SI units is established through the calibration of standard resistor, capacitor, and current comparator ratios.

Keywords

calibration; capacitors; current comparators; electric current measurement; measurement uncertainty; resistors; voltage measurement; SI unit; capacitor; current comparator ratio; current-comparator-based dual-channel calibration system; in-phase expanded measurement uncertainty; quadrature expanded measurement uncertainty; small AC voltage; standard resistor; voltage 1 mV to 100 mV; Bridge circuits; Calibration; Capacitors; Resistors; Uncertainty; Voltage measurement; Windings; AC voltage measurement; calibration; current comparator; digital sampling; measurement uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898613

Filename

6898613