ВИЗНАЧЕННЯ СТАЛОЇ ВІДДАЛЕМІРА ЕЛЕКТРОННОГО ТАХЕОМЕТРА З ВИКОРИСТАННЯМ НОВОГО ПРИСТРОЮ ДЛЯ ПРИВ’ЯЗКИ ДО СТІННИХ ЗНАКІВ

Abstract

Urgency of the research. An important part of geodetic works is measurement lines. Linear measurements performed during the construction of geodetic networks, topographic survey, еngineering and geodetic works. Therefore, еnsuring reliable results of linear measurements is an urgent task.Target setting. In the practice of geodetic measurements, satellite technology is increasingly being used [1, 2]. But GPS positioning also has its disadvantages. The use of GPS technology to determine the coordinates of points in settlements with multi-storey buildings, in mountainous terrain in the woods, is still quite problematic. In these areas, a combination of GPS positioning and polygonometric networks [3] is used. To measure distances and angles in polygonometric networks, electronic tacheometers are currently being used. Fixing of points of geodetic networks in settlements is carried out, basically, with the help of wall signs.Actual scientific researches and issues analysis For binding to wall signs using electronic tachymeters, various visions are used [4,5]. The centers of the wall signs are located quite close to the wall or base of the building. The disadvantages of such devices are significant dimensions. This reduces the sector of device inspection from the side of the station. Therefore, a new conjecture was proposed for binding to wall signs [6], whose construction deprives these inconveniences. There was a need to determine the remote distance meter of the Trimble 3305 DR electronic meter, complete with a new device for binding to wall signs. There are various ways to define a stable electronic distance monitor [7]. An analog method is used to compare short distances measured by an electronic stationer and a measuring device, a tape measure.Uninvestigatigated parts of general matters defining The use of the Trimble 3305 DR electronic meter, complete with a new device for removal coordinates from the wall marks, requires the further development of a method for determining the constant correction electronic rangefinder.The research objective. The main purpose of this work is to familiarize with the developed method for determining the constant correction of the electronic rangefinder Trimble 3305 DR , complete with a new device for removal coordinates from the wall marks.The statement of basic materials. The new device [6] for attaching to wall signs has the following basic design elements: the body, the upper part of which is a fixing screw ending with a conical tip, which is screwed into the hole of the center of the wall sign. A round level is used to bring the device to its working condition. The reflector of light signals from the electronic station is made in the form of a troll-prism. The marker on the wall is inside the cavity, which covers the head of the wall sign. Fixing screws hold the stick on the wall sign. It was measured 30 times the short distance Trimble 3305 DR on the reflector of the new device, fixed on the wall sign. Then the new device was removed from the wall sign. A special device for counting distances up to 0.1 mm was installed in the treadmill instead of the station. Measure the same distance with the inter tool roulette 10 times relative to the center of the wall sign. The average values of the measured distances were calculated and brought to the horizon. The distances were corrected for temperature and computation. The results of the measurements were to be determined by the constant error of the ABBA criterion, the correspondence to the normal distribution by the Kolmogorov criterion and using asymmetry and excess. The result is a constant and average square error of its definition.Conclusions. The experimental researches and processing of the results for the determination of the permanent electronic timer, Trimble 3305 DR, are completed with a new device for binding to wall signs. A statistical check of series of measurements has been carried out, which showed the absence of systematic errors in the measurement series and correspond to the normal distribution of results. The constant value is + 23.4 mm ± 0.8 mm.