Journal
MEASUREMENT TECHNIQUES
Volume 58, Issue 9, Pages 942-948Publisher
SPRINGER
DOI: 10.1007/s11018-015-0822-z
Keywords
systematic error; expanded uncertainty; coverage factor; Bayesian estimate
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The problem of calculating the expanded uncertainty of measurements during calibration is examined. Two sources of measurement error are identified: the uncertainty of the reference value obtained from a standard and the dispersion in the readings from the measuring instrument that is being calibrated. A Bayesian approach is used to determine the dependence of the coverage factor on the number of repeated measurements and the relationship of these uncertainties.
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