Testing of accuracy of reflectorless distance measurement of selected Leica and Topcon total stations

Abstract

Each new geodetic instrument before being put into normal operation is verified for compliance with the manufacturer declared parameters. The procedures for testing of geodetic instruments at the Institute of Geodesy and Mine Surveying, VŠB – Technical University of Ostrava (hereinafter referred to as IGMS) are processed to meet the ČSN ISO 17123 standards. However, standard methods for calibration of geodetic instruments do not include the procedures for testing of reflectorless distance measurement. IGMS VŠB-TU Ostrava has bought new total stations – Leica TCRP 1201 and TCRP 1202, Topcon GPT 7001 and GPT- 8203M. Each of these total stations provides, inter alia, the reflectorless distance measurement. During the calibration of the new total stations we proceeded to the research of distance measurement accuracy without the use of reflecting prisms at the telemetering base of IGMS in Ostrava-Krásné Pole.