The Role of Measurement Uncertainty in the Decision Making for Testing and Inspection

Damir Ilić

Abstract

In this paper is analysed the influence of the expanded uncertainty in the conformity assessment based on the international standards and documents. The different approaches for the calculation of combined standard uncertainties are given, based both on the worst possible consideration up to the implementation of corrections as appropriate. Furthermore, the influence of the effective degrees of freedom and t-distribution is pointed as well. The calculations are presented on the example of the testing and/or inspection of the current instrument transformers test for accuracy.

Keywords

Measurement uncertainty, Decision Making, Testing, Inspection, Instrument Transformers

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IMEKO-TC10-2020-043.pdf

DOI

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IMEKO TC

TC10 - Measurement for Diagnostics, Optimization and Control

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