REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

ANALYSIS OF MEASURING UNCERTAINTY OF dc current calibration of ELECTRICAL RESISTANCE OF THE RESISTORS USING DIG ITAL MULTIMETER AGILENT 3458A

milana nikolić

Technical Test Center, Belgrade, metrologija@toc.vs.rs

ZORAN KNEŽEVIĆ

Technical Test Center, Belgrade, metrologija@toc.vs.rs

SLAVKO VUKANIĆ

Technical Test Center, Belgrade, metrologija@toc.vs.rs

Abstract: The measurement method of DC current calibration of electrical resistance of the resistors, measuring equipment for verification and calibration results obtained by direct method using as reference standard digital multimeter Agilent 3458A, in Technical Test Center, Department of Metrology (TOC - SM), Laboratory for primary standards of electrical quantities (ML – 01)‚ with emphasis on evaluation and expression of the measuring uncertainty  are presented. The uncertainty budget for resistor nominal value 100 Ω according to the international standards is given in this paper also.

Keywords: Calibration, dc resistance