Model-based measurement uncertainty evaluation,with applications in testing |
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Authors: | Cox Maurice G Desenfant Michèle Harris Peter M Siebert Bernd R L |
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Institution: | (1) National Physical Laboratory, Teddington, TW11 0LW, UK;(2) Laboratoire National dEssais, Cedex 15, 75724 Paris, France;(3) Physikalisch-Technische Bundesanstalt, Postfach 3345, D-38023 Braunschweig, Germany |
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Abstract: | Basic concepts and implementations of the model-based approach to uncertainty evaluation are discussed. One implementation is that of the law of propagation of uncertainty with the use of the central limit theorem as recommended in the Guide to the expression of uncertainty in measurement (GUM). Another is the propagation of distributions, the subject of a supplemental guide to the GUM, which is at an advanced stage of development. It falls in the category of other analytical and numerical methods indicated in the GUM. Two testing applications are used to illustrate the principles: tennis-ball rebound and tensile strength. |
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Keywords: | Models Uncertainty evaluation GUM Propagation of distributions Testing |
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