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    Wyświetlanie 1-7 z 7
    Tytuł:
    The determination of alignment elements of mining hoist brake actuators
    Autorzy:
    Lipecki, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/225552.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    wyciągi górnicze
    skanowanie laserowe
    mining extracts
    laser scanner
    Opis:
    This paper presents a method of control of geometry of mining hoist brakes. To assess the relative positions and axiality of components, precise leveling and laser scanning were used. There were also presented the methods of its analysis, as well as the reasons of the malfunctioning operation of the equipment. The tests carried out showed that, for geometric assessment of this type of mechanical equipment, such methods should be used with surveying, which allow you to recreate any element of machine at virtual space. One of these methods is laser scanning.
    Źródło:
    Reports on Geodesy; 2011, z. 1/90; 257-264
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experiences related to utilisation of laser scanning for engineering surveying tasks (verification of accuracy capabilities)
    Autorzy:
    Falkowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/224369.pdf
    Data publikacji:
    2007
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    skaning laserowy
    skaner laserowy
    pomiary geodezyjne
    laser scanning
    laser scanner
    engineering surveying
    Opis:
    The presented results of investigation of accuracy point out that the laser scanning technology may be applied for such measurements where the highest accuracy of coordinates determination is not required. Performed tests also proved that in the course of utilisation of the laser scanner measurements various factors, which influence the accuracy of obtained results, should be considered. Specific characteristics of the output product of laser scanning (i.e. the cloud of points) are also very important. Though high density of the cloud occurs, the possibility to improve interpretation capabilities through utilisation of the intensity image (or digital photographs) and high accuracy of determination of co-ordinates of an individual point within that cloud, the accuracy of identification of particular points and lines within that object is limited. This results in the necessity to change the measurement methodology and to focus on detection of surfaces and automatic identification of shapes, instead of identification of individual points. In such approach to determination of the object's shape, many points are used, what allows for better identification of the object and to decrease the influence of incidental errors. A separate issue, which influences the accuracy of measurements performed by means of a laser scanner, is the possibility to eliminate instrumental errors in post-processing. It has been stated that utilisation of corrections due to non-perpendicularity of axes and corrections for distance measurements allows to increase the accuracy of co-ordinates measurements by approximately 10 - 15 %.
    Źródło:
    Reports on Geodesy; 2007, z. 1/82; 61-67
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Utilization of terrestrial laser scanner Leica scanstation for stocktaking measurements on an example of a spherical dome
    Autorzy:
    Hejbudzka, K.
    Kamiński, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/225573.pdf
    Data publikacji:
    2009
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    naziemny skaner laserowy
    kopuły sferyczne
    modelowanie
    terrestrial laser scanner
    spherical dome
    modeling
    Opis:
    The work presents results of using the technology of terrestrial laser scanning in stocktaking measurements of spherical domes. The parameter subject to special evaluation is the value of the dome's diameter set on primary Ievel, which is compared with the theoretical value obtained from the technical project of the object. The measurements in several variants were made with the use of Leica ScanStation laser scanner bought by the Geodesy Institute. In office works the original manufacturer's programme (Cyclone v. 5.6) was used. The programme enables modeling the obtained observation results and making basic measurements, such as, among other, measuring the value of the diameter on the cross-section subject to the analysis. The results obtained with the use of laser scanning encourage to further detailed theoretically-empirical analysis.
    Źródło:
    Reports on Geodesy; 2009, z. 2/87; 145-152
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of bridge structure deformation using TLS
    Autorzy:
    Erdelyi, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/225538.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    budowa mostu
    skaner laserowy naziemny
    belka betonu
    bridge structure
    terrestrial laser scanner
    concrete beam
    Opis:
    This paper deals with determination of deformation of the No. M 137 bridge at Bojnická Street in Bratislava (Slovak Republic). The structure of the bridge consists of eleven concrete beams positioned in longitudinal direction. The atmospheric conditions and the traffic are causing deformation of the bridge structure. In this paper is described the procedure of initial measurement of displacements using Terrestrial Laser Scanner (TLS). Heights of 196 measured points were determined in local coordinate system. The points were situated in profiles (11 in each profile) on the beginning, the centre and the end of each bridge section.
    Źródło:
    Reports on Geodesy; 2011, z. 1/90; 115-121
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigating the accuracy of spatial coordinates of modeled HDS target center depending on the range from terrestrial laser scanner measurements
    Autorzy:
    Hejbudzka, K.
    Dumalski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/225524.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    skaner laserowy naziemny
    dokładność punktu 3D modelowanego
    terrestrial laser scanner
    accuracy of modeled 3D point
    Opis:
    The paper presents an analysis of the accuracy of the position of High Definition Survey (further HDS) target center in three dimensional space. Precise position of the target center has a significant impact on georeference, the registration accuracy of several point clouds into a complete 3D point cloud and, what is more, on the accuracy of the final results. The measurements were made with the use of Leica Scanstation. During the experiment 15 scans of the fixed target, for each of three distances, were carried out. The results were conducted in two ways: using scanner's software - the Cyclone, and the author's program written in Python. The obtained results were the basis for statistical analysis, namely a confidence ellipsoid in 3D space.
    Źródło:
    Reports on Geodesy; 2011, z. 1/90; 157-164
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Terrestrial laser system testing using reference bodies
    Autorzy:
    Kopacik, A
    Powiązania:
    https://bibliotekanauki.pl/articles/224487.pdf
    Data publikacji:
    2007
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    skaning laserowy
    skaner laserowy
    system laserowy
    pomiary geodezyjne
    laser scanning
    laser scanner
    terrestrial laser system
    engineering surveying
    Źródło:
    Reports on Geodesy; 2007, z. 1/82; 135-143
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experiences of WPG S.A. in the usage of terrestial laser scanners for building inventory purposes
    Autorzy:
    Uchanski, L.
    Falkowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/225360.pdf
    Data publikacji:
    2009
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    Warszawskie Przedsiębiorstwo Geodezyjne S.A.
    WPG S.A.
    inwentaryzacja
    skaner laserowy
    Warsaw Surveying Company SA
    stocktaking
    laser scanner
    Źródło:
    Reports on Geodesy; 2009, z. 2/87; 405-410
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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