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Aide in decision-making: contribution to uncertainties in three-dimensional measurement

Abstract : The authorities of the standards organization International Organization of Standardization (ISO) advocate mastering any uncertainties in all parts of the industrialization process. In the three-dimensional (3D) measurement process, uncertainty is usually obtained at the end of a battery of tests. It is defined as a whole because it includes several types of errors, known systematic components, unknown systematic components and random components. Automated calculations of uncertainty can be made based on statistics. This method is based on statistical concepts, which are in accordance with " The Guide to the expression of the uncertainty in measurement " (GUM). It also enables us to generate uncertainties on the verification of ISO specifications (or specs in the ISO directives). In the course of this article, a usage will be presented that takes the knowledge of uncertainties into account: this usage will help the operator to take a decision on the conformance of a mechanical part in reference to its conformance to geometric tolerance.
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Jérôme Bachmann, Jean-Marc Linares, Jean Michel Sprauel, Pierre Bourdet. Aide in decision-making: contribution to uncertainties in three-dimensional measurement. Precision Engineering, Elsevier, 2004, 28, pp.78 - 88. ⟨10.1016/S0141-6359(03)00079-5⟩. ⟨hal-01410084⟩



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