Invar rod calibration on vertical comparator executed in the geodesy metrology laboratory of the AGH University of science and technology in Krakow – Poland with use of computer-aided image analysis

Examinations of leveling rods in the Geodesy Metrology Laboratory (GLM AGH) of the AGH University of Science and Technology are conducted with use of vertical comparator. The first concept of the comparator in question was designed in the Department of Geodesy and Cartography of the Faculty Mining Surveying and Environmental Engineering in the years 1998 – 1999 by research team represented by: Józef Mróz, Andrzej Pokrzywa and Tadeusz Szczutko. The comparator consists of three systems: carrying system, measuring system and environmental conditions monitoring system (Frukacz 2010).