CALIBRATION OF IMPEDANCES BY THE SUBSTITUTION METHOD: NUMERICAL UNCERTAINTY EVALUATION

Luca Callegaro, Walter Bich

Abstract

Several theoretical and practical difficulties affect the analytical evaluation of uncertainty of measurements dealing with complex variables. Computerintensive methods based on bootstrap and Monte Carlo techniques are here employed to investigate the uncertainty evaluation of a basic measurement procedure, the calibration of an impedance standard with the substitution method, using an RLC automatic bridge as a comparator. A procedure giving confidence intervals for the impedance parameter is shown in principle; results of calculations made with an implementation on actual measurement data are shown.

Keywords

uncertainty, impedance calibration, numerical methods

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IMEKO-TC4-2001-093.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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