TY - JOUR N2 - Touch-trigger probes for CNC milling machines usually use wireless communication in the radio or IR band. Additionally they enable triggering signal filtering in order to avoid false triggers of the probe. These solutions cause a delay in trigger signal transmission from the probe to the machine tool controller. This delay creates an additional pre-travel component, which is directly proportional to the measurement speed and which is the cause of a previously observed but not explained increase of the pre-travel with the increase of the measurement speed. In the paper, a method of testing the delay time of triggering signal is described, an example of delay time testing results is presented and the previous, unexplained results of other researchers are analysed in terms of signal transmission delay. L1 - http://www.czasopisma.pan.pl/Content/104025/PDF/art09.pdf L2 - http://www.czasopisma.pan.pl/Content/104025 PY - 2018 IS - No 2 DO - 10.24425/119559 KW - probes KW - CNC machine tools KW - communication delay KW - measurement speed A1 - Jankowski, Michał A1 - Woźniak, Adam PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation VL - vol. 25 DA - 2018.06.15 T1 - Testing of the delay time of wireless communication of CNC machine tools’ probes and controller UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/104025 T2 - Metrology and Measurement Systems ER -