MODELLING THE CALIBRATION OF THE IPRT ACCORDING TO THE ISO UNCERTAINTY GUIDE

I. Yang, K. S. Gam, W. Joung, Y.-G. Kim

Abstract

According to the ISO guide to the expression of uncertainty in measurement, the calibration process and its uncertainty evaluation should be expressed in terms of mathematical function(s) of input quantities. However, in practice, expressing measurement or calibration in a way that is fully compliant to the ISO guide might be unrealistic and requires a clear definition of the calibration process itself. Depending on the point of view on the calibration process, different modelling equation with various complexities can be written. In this paper, four different approaches are given to model the calibration process of industrial platinum resistance thermometers.

Keywords

GUM, uncertainty, IPRT, modelling of measurements

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IMEKO-WC-2012-TC12-O4.pdf

DOI

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IMEKO TC

TC12 - Temperature and Thermal Measurements

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