by Henry Zumbrun There is a bit of a disconnect regarding risk mitigation practices in the metrology and calibration provider community. Most likely, this comes from a misunderstanding of terminology or legacy requirements that have […]
This introduction to measurement uncertainty is intended for metrology professionals working in calibration laboratories and metrology institutes, as well as students in tertiary-level science and engineering programmes. The subject matter is presented with an emphasis […]
by John Hurll Volume 16:4, Oct-Dec 2009 It is often the case that it will be necessary to provide information in calibration reports about whether or not the stated results for general purpose test and […]
by Dave Abell and Jon Moens Volume 9:4, Oct-Dec 2002 Calculating measurement uncertainties for a single parameter such as DC voltage is relatively straightforward, but to do so for a complex microwave spectrum analyzer that […]
by Jeff Gust Volume 7:5, Sep-Oct 2000 As metrologists are acutely aware, when one transfers a measured value such as resistance, they also transfer a measurement uncertainty that is associated with the calibration of the […]
by Hening Huang This paper presents two simple and practical frequentist methods for combining prior information with current measurement in uncertainty analysis. The first method is based on the “law of combination of distributions” (LCD). […]
By Hening Huang A variety of statistical methods are available for estimating consensus values in interlaboratory studies (including key comparisons). These methods, although developed based on different approaches and ranging from simple to complex, produce […]
by Manuel Rodríguez In this paper, the Probability of Pass (PoP) and the Probability of Fail (PoF) are derived following a metrological approach, in which concepts such as repeatability, number of effective degrees of freedom, […]
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