Abstract
Theoretical background of new method for uncertainty evaluation was presented on the examples of measurement of circle and arc radius. The method uses the formula for CMM maximum permissible error of length measurement and the reverification test results as the input data.
Highlights
WOJCIECH PŁOWUCHA *Theoretical background of new method for uncertainty evaluation was presented on the examples of measurement of circle and arc radius
The estimation of the uncertainty of coordinate measurements is one of the important problems in the face of the widespread use of coordinate measuring machines (CMM)
Significant barriers to the use of the sensitivity analysis method include the large number of sampling points and the complexity of measurement models that require knowledge of geometric CMM errors
Summary
Theoretical background of new method for uncertainty evaluation was presented on the examples of measurement of circle and arc radius. The author of this publication noted that if the uncertainty of measuring coordinate differences is expressed using the formula for the maximum permissible error of length measurement (EL, MPE), a significant simplification of the required analyzes is obtained, at the expense of possible slight over-estimation of measurement uncertainty [12]. On this basis, the method was developed in accordance with the modern approach to estimating the uncertainty of measurements, and at the same time it is a simple methodology, taking into account the existing coordinate techniques and possible for direct application
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