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117 results for “Measurement uncertainty”
A statement of a measurement uncertainty, its components, and their calculation and combination — usually tabulated with each source, evaluation type, distribution, standard uncertainty, sensitivity…
The standard uncertainty obtained from the individual standard uncertainties (and covariances) of the input quantities through the measurement model — root-sum-of-squares in…
An uncertainty specified in advance as an upper limit, decided from the intended use of the result. VIM (JCGM 200:2012) 2.34 Uncertainty
…the internationally agreed framework for evaluating and expressing measurement uncertainty — Type A/B evaluation, combination, and expanded uncertainty. Freely available from the BIPM. JCGM…
Measurement uncertainty expressed as a standard deviation, denoted u — the common currency into which all components are converted before combination. VIM (JCGM 200:2012…
Evaluation of a component of uncertainty by means other than statistical analysis of current measurements — calibration certificates, specifications, handbook data, assumed distributions. VIM (JCGM…
A standard uncertainty divided by the absolute value of the measured quantity value — the form specifications and CMCs often quote (parts in 10⁶, percent…
Evaluation of a component of uncertainty by statistical analysis of measured values obtained under defined conditions — e.g. the standard deviation of the mean…
The product of a combined standard uncertainty and a coverage factor greater than one: U = k·u꜀. With k = 2 the coverage probability is…
Round an expanded uncertainty to two significant figures and the measured value to match, per GUM 7.2.6 reporting convention.
Questions post under a public pseudonym. Be specific — instrument, method, standard.