STUDYING TURBULENCE IMPACT ON SIGHTING ERROR OF AUTOMATED TOTAL STATION

The paper presents the results of studying air turbulence impact on operational accuracy of the total station in automatic mode. The study was carried out in laboratory conditions with the total station Leica TCRP 1201+. Dependencies of accurate aiming on direction, velocity and temperature of air stream were determined. The aiming accuracy was determined at the distance of 18 m. The convector that made the air stream, was positioned at different distances from the total station. The numerous measurements determined root mean square errors of aiming in horizontal and vertical cir-cles and distances. It is stated that the aiming accuracy gets worse when the air temperature increas-es. It is also stated that when laser beam goes through the hot air stream, it deviates. The paper gives the recommendations for reducing errors in automated aiming of the total station if there is a directed air convection.