The influence of dwell time on the collected data during linear displacement measurements of machine tools

During linear displacement measurement of CNC machine tools (MT) with laser interferometer the
optical components are moved along the measured axis. At the selected measurement points of the
axis the optics stops and data collection is performed. At the beginning of the stopping cycle, because
of the inertion of the optics and the MT structure, vibrations occure, which spoils the collected data.
To minimize the dwell time, the time needed to wait at the measurement point, the number of the
collected position data needs to be minimized. In this work through an example is represented the
influence of the number of collected data on the measurement values during linear displacement
measurements of machine tools.