Accuracy of coordinate measuring machines - Characteristics and their checking - Determination of the uncertainty of measurement for coordinate measuring machines using uncertainty budgets
The guideline describes a simplified procedure for the determination of the uncertainty of measurements from coordinate measuring machines by use of measuring uncertainty balances. The descriptive procedure is analytic, which follows the defaults of the GUM. On the basis of a mathematical model of the measurement the magnitudes of influence are determined and from this the uncertainty of measurement is determined. The procedure usually leads with simplified application for an over-estimation of the uncertainty of measurement, supplies nevertheless reference values, which contribute to an evaluation of the measurement. The determined uncertainty of measurement can be better estimated by increased expenditure.