During construction and maintenance of buildings it is necessary to transfer the height from the ground level to each floor. The transfer is realized by various methods, e.g. by geometric levelling, geometric levelling with the use of geodetic measuring tape, or by trigonometric levelling. The authors developed and made a set of measuring devices consisting of a benchmark table and plane mirrors enabling the transfer of height with the use of an electronic total station equipped with an option of measuring distance without using reflector prisms. The paper presents the results of experimental studies carried out within the building of The Faculty of Environmental Engineering and Geodesy of the Wrocław University of Environmental and Life Sciences, with the use of the proposed measuring devices set. The research work was based on functional and accuracy analysis and the analysis of the time of height transfer made by means of the studied measuring devices and was compared with the measurement results obtained by a precision level Leica DNA03.
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The main objective of this paper was to create the 3D model of the historic building wall with the use of reflectorless electronic tacheometer. The contour survey method has been applied as the method of measurement. In the article, the influence of the material, from which the building was made, on the measurement of distance taken by a laser rangefinder was estimated as well; the results have been compared to the results obtained from the angular intersection method and the contour survey method.
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W artykule przedstawiono warianty metod pomiarów kątowych na obiektach inżynierskich z zastosowaniem nasadek do teodolitów i tachymetrów. Zastosowanie opisanych konstrukcji pomysłu autorów umożliwić może nawiązania kątowe do punktów pomiarowych zlokalizowanych w bliskiej odległości od instrumentu kątomierczego. Pozwoli to na efektywne usprawnienie prowadzonych procedur pomiarowych.
EN
The article presents some variants and methods of angular surveys conducted on engineering objects by using measuring adapters for theodolites and total-stations. The application of the described authors' ideas makes it possible an angular connection to control points located near an instrument. Such approach enables a surveyor to rationalize measuring procedures.
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W artykule przedstawiono laboratoryjne stanowisko do empirycznego określania dokładności pomiarów kątowych tachymetrów, przeznaczone do wyznaczenia dokładności pomiarowej instrumentu kątomierczego i ustalenia jego zakresu przydatności użytkowej. Jako sygnalizatory celu zaproponowano piony celownicze z drutu o średnicy 0,04 mm.
EN
The article presents an experimental laboratory set used for empirical determination of the angular accuracy of total-stations. A purpose of the designed set was also to characterise a precision of measuring device and fixing its utilitarian range. As signals, it has been propose to use plummets made of wire with the perimeter of 0,04 mm.
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