Determining the theoretical method error during an on-machine roundness measurement

The analysis of the theoretical method error was conducted for on-machine measurements of roundness profiles based on the assessment of radial variations. The derived mathematical relationships were represented graphically. The absolute and relative theoretical method errors were determined for the assumed initial conditions. Planned further research activities are given.

► It is possible to minimize the errors of the method of roundness measurements on a process tool.
► We provide mathematical fundamentals of the errors minimization for the method.
► Statistical tests show that the method can be applied under industrial conditions.