ВИЗНАЧЕННЯ ВЕЛИЧИНИ Й ТОЧНОСТІ СТАЛОЇ ВІДДАЛЕМІРА ЕЛЕКТРОННОГО ТАХЕОМЕТРА ЗА РЕЗУЛЬТАТАМИ ПРИВ’ЯЗКИ ДО ПОДВІЙНОГО СТІННОГО ГЕОДЕЗИЧНОГО ЗНАКУ

Abstract

Urgency of the research. Now manufacturers of geodetic instruments supply a variety of geodetic equipment to the market. An important place in this assortment belongs to electronic range finders. They combine in their design a goniometer, an electronic rangefinder and a processor that allows to solve various geodetic tasks based on the measurements. Target setting. To ensure reliable data on the measured distance, it is necessary to periodically determine the constant correction of the range finder of the electronic total station. This is especially true in the case of measuring distance using a reflector from an electronic total station of a different brand. Actual scientific researches and issues analysis. The method for determining the constant correction of the range finder of an electronic total station based on the results of binding to a double geodetic wall sign is described in [1]. The technology of measurements and the formula for determining the constant are shown. An unexplored parts of a common problem. In continuation of the topics given in [1], it is advisable to carry out a practical implementation of the method for determining the constant correction and establish its accuracy. The research objective. The main goal of this article is to determine the constant correction of the range finder of an electronic total station based on the data obtained from the results of binding to a double geodetic wall sign, and also to calculate its accuracy. The statement of basic materials. The approbation of the technology for determining the constant correction of the range finder of an electronic total station for the results of measurements made during binding to the double wall sign of the city polygonometry of Chernihiv is presented. The Trimble 3305 DR total station and reflector for binding to wall signs, developed at the Department of Geodesy, Cartography and Land Management of the Chernihiv Polytechnic National University, were used. As a result, a constant correction value of +22.6 mm was obtained. Formulas for calculating the mean square error of the constant correction for various options for binding to a double wall sign are derived and calculations are performed using these formulas. Conclusions. The developed technology was tested for determining the constant correction of the range finder of an electronic total station according to the measurement results obtained during binding to a double wall sign. Formulas are obtained and calculations are performed to determine the mean square error of the constant correction of the range finder of an electronic total station