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measurement error

Measurement deviations indicate how much the measured value deviates from the actual value of the measurand. There is the random measurement deviation and the systematic one.

Random measurement deviations are indicated by the fact that the measured values deviate from each other in several measurements and vary unpredictably. Only when numerous measurements are carried out can measurement deviations be eliminated by the calculated mean value.

Systematic measurement deviations occur when deviations occur in an unlimited number of measurements of the same measurand under the same measurement conditions. They can be errors in the measurement setup, which can be corrected if the causes of the systematic error are known.

Informations:
Englisch: measurement error
Updated at: 23.03.2011
#Words: 108
Links: measured value, measurand, measurement, fact, setup
Translations: DE
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