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  5. Combining heterogeneous data in measurement uncertainty estimation

Combining heterogeneous data in measurement uncertainty estimation

I.R. Szajniak
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An approach how the measurement result could be improved in the presence of data on measurement method accuracy obtained as a consequence of an interlaboratory experiment in accordance with ISO 575-2 as well as conditions when such an approach could be applied are considered. It is shown that data could be combined if only information on the structure of inference in a suitable form is kept, particularly if the inference is based on the Welch-Satterthwaite formula.
Keywords: measurement uncertainty, GUM, Bayesian approach, heterogeneous data combination