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measuring uncertainty

The measurement uncertainty reflects the uncertainty in the measurement result. It is expressed in the fact that several measured values of the same measurand

differ in their results. The measurement result is only complete if it contains the measured value as well as the associated uncertainty. According to DIN 1319, two methods

are described for the determination of uncertainties. Determinationmethod A describes a statistical procedure through the analysis of series of measurements, and in determination method B

theuncertainty of measurement is determined "by other means".

In DIN 1319, the uncertainty of measurement is described as follows: Parameter assigned to the measurement result, which characterizes the dispersion of the values that are reasonably assigned to the measurand.

The parameter can be a standard deviation or a multiple thereof.

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Englisch: measuring uncertainty
Updated at: 23.03.2011
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