Szukana fraza: [Abstract = "The 50 m interference comparator at GUM enables calibration of steel tapes, interferometers, EDMs, total stations and laser trackers. An analysis of mechanical, environmental and line detection factors influencing measurement uncertainty is presented. A procedure for calibrating geodetic total stations has been prepared. Tests of a multicolor laser ADM were performed as part of the EMPIR 20IND02 DynaMITE project."]