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5 kwi 2001 · Examples of sources of uncertainty in our field are the measurement of volumes, weighing, reaction temperature, purity of reagents, and value assigned to the calibrator. Also properties of the instrument used e.g. the size and tolerance of the cuvette, if the instrument uses more than one cuvette they may be different, the wavelength etc.
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31 sie 2020 · Then, the core ideas and typical methods of several important UQ processes are introduced, including sensitivity analysis, uncertainty propagation, model calibration, Bayesian inference, experimental design, surrogate model, and model uncertainty analysis.
18 sty 2022 · In this article, we distinguish between the use of an expression of uncertainty as information for the recipient of a measurement result and its use when propagating uncertainty about inputs to a measurement model in order to derive the uncertainty in a measurand.
6 maj 2022 · This paper discusses the comparison of uncertainties in chemical measurements using case study examples. Depending on the context, both exact and approximate F -tests are used to compare the ratios of uncertainties, while in some cases the approach is to compare separate confidence intervals. Similar content being viewed by others.
28 wrz 2017 · This chapter presents and explains the most used methodologies for the evaluation of measurement uncertainty in metrology with practical examples.
1 lis 2011 · The paper discusses the problem of evaluating the contribution of systematic errors to the overall measurement uncertainty. After a brief review of the standard GUM approach, which uses distributions in a largely subjective sense, and of two alternative approaches, which do not use distributions at all, a strictly “objective” and ...
1 lis 2016 · The paper presents examples of the evaluation of uncertainty components in accordance with the current and revised Guide to the expression of uncertainty in measurement (GUM).
