201919th International Congress of Metrology
|Number of page(s)||5|
|Section||Uncertainties / Incertitudes|
|Published online||23 September 2019|
Choice of parameters for an R&R study and its impact on the measurement capability
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When you perform a traditional R&R (Repeatability and Reproducibility), the first practical question that comes to mind is “How many times “n” do we repeat the measurements, and how many operators “p” should we consider?”. As the quality of the standard deviations obtained during this study depends on the parameters n and p, a large number of measurements is required. This is obviously not possible due to environment, time and cost aspects. The question is then, how to optimise the parameters “n” and “p”, for an R&R study? To answer this question, statistics are useful tools, which, combined with your practical skills, will help you to understand the outcome of the study and rationalise your choice.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.