Measurement and Measurement Uncertainty

Abstract

Measurements together with observation are the basis for documenting, quantifying, describing, and understanding experiments, systems, and their variables. However, the measuring process is subject to uncertainties and errors that influence the results and must be considered in the interpretation of measured values. We distinguish gross, random, and systematic deviations of measurements. A measurement is an experimental process in which we establish the value of a variable relative to a calibrated scale.