Method for determining a repeatability variance

Abstract

A method (1000) for determining the repeatability variance of a given measurement process to be carried out on a test object (1), comprising the following steps: providing (100) at least one test object (1); determining (200) at least one measurement parameter (2) of the measurement process, on which measurement parameter the result of the measurement process also depends, in addition to the properties of the test object (1), which properties are to be measured and are provided in the form of a measurement variable (3) to be considered; determining a variation range (21) for the at least one measurement parameter (2); carrying out (300) a plurality of measurements on the test object (1) for various values (210, 211, 212) of the at least one measurement parameter (2) within the relevant variation range (21), so that at least one distribution (310, 311, 312) of the measured values of the measurement variable (3) is obtained with at least one measure of dispersion (310a, 311, 312a), in particular a dispersion range; analyzing the sought-after repeatability variance from the at least one measure of dispersion (310a, 311a, 312a) of the at least one distribution (310, 311, 312) of the measured values obtained.

Dependencies are inferred from the claim text.