Autor: Woźniak, M.J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Investigation of the accuracy of geodetic measurements using reflectorless techniques
Autorzy:: Woźniak, M.
Jastrzębski, S.
Wojciekowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/224683.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:: technika bezlustrowa
tachimetry
pomiary geodezyjne
reflectorless techniques
tacheometers
surveing
Opis:: This paper presents the results of investigation of geometry accuracy using reflectorless techniques. Experimental measurenents were carried out the polygon using new tacheometers and a monitoring application program. The results of experimental measurements were analyzed and presented graphicall in Surfer 8. Contour maps and isometric projections of the surface of imperfection are elements of the present study. It presents the results of investigation of measurements accuracy in geometry according to various geometry conditions.
Źródło:: Reports on Geodesy; 2009, z. 1/86; 97-103
0867-3179
Pojawia się w:: Reports on Geodesy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Control network analysis of the dam "Wióry"
Autorzy:: Walo, J.
Szpunar, R.
Woźniak, M.
Powiązania:: https://bibliotekanauki.pl/articles/225005.pdf
Data publikacji:: 2007
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:: zapora ziemna
sieć kontrolna
Wióry
pomiary geodezyjne
earth dam
control network
engineering surveying
Opis:: The obtained results of the test measurements in the control network of the dam Wióry show that combined usage of length measurements and GPS observations enables to obtain high accuracy and reliability in defining point coordinates. The real determination accuracy of checkpoint displacements in this type of networks is at the level of (plus minus) 2-3mm. However, it should be added that in small networks covering an area up to 1 km in radius, classical measurements (most of all, length measurements) enable to obtain higher accuracies in determining point coordinates, obviously on condition that the net structure is well-designed and length measurement is possible. Having analyzed the obtained results, one can also formulate the following conclusions: - the assumed structure of a modified test network shows effective accuracy both for EDM measurements and GPS observations, - satellite measurements enable combined and direct observation of points between which there is no sight line. It is especially important in the case of reference points which are usually located around the monitored object, and it is rarely possible to link them by means of classical measurements; - GPS measurements make it possible to check the monitored network independently, at least limiting the incidence of major and systematic errors in processing the results and defining displacement values; so GPS observations may, in the case of small control networks, be treated as control measurements made periodically (e.g. every year); - accuracy assessment made for TDA5005 tachymeter observations even in the case of considerable target inclinations, made by means of standard reflectors, attested reflexive foil and CCR fulfills monitoring requirements of specific point (targets), enabling to obtain an accuracy of the (plus minus) 0.5 mm range in relation to reference points; - linear measurements in the test network of Wiory, made by means of a TDA5005 tachymeter and high precision reflectors can be accomplished within 2-3 days.
Źródło:: Reports on Geodesy; 2007, z. 1/82; 376-380
0867-3179
Pojawia się w:: Reports on Geodesy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Multipath effect analysis on selected points in control network "Wióry"
Autorzy:: Szpunar, R.
Walo, J.
Próchniewicz, D.
Woźniak, M.
Powiązania:: https://bibliotekanauki.pl/articles/225113.pdf
Data publikacji:: 2008
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:: sieci geodezyjne
geodetic networks
Opis:: Geodetic networks are a basic constructions periodically measured on engineering constructions. They usually joint two objects: control objects and reference objects. Physical points and geodetic observations realize it. Moreover, the reference points and control points have to be checked for their stability and measuring technique (visibility between reference and control points for terrestrial observations, multipath effect for satellite obseryations). Multipath effect analysis on selected points in control network "Wióry" is presented in the paper.
Źródło:: Reports on Geodesy; 2008, z. 1/84; 87-92
0867-3179
Pojawia się w:: Reports on Geodesy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Investigation of short-term roof structure deformations using geodetic methods
Autorzy:: Woźniak, M.
Odziemczyk, W.
Jastrzębski, S.
Wojciechowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/225119.pdf
Data publikacji:: 2008
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:: deformacja konstrukcji
konstrukcja dachu
pomiary
deformation structures
roof structures
measurements
Opis:: The article contains the results of the measurements of the Warsaw University of Technology Main Hall roof deformations under various conditions. These results were obtained autornatically using precise motorized tacheometres TDA5005 and TCRP2002. In this work we compare the vertical components obtained with tacheometric measurements to the results of geometric leveling for chosen control points. The aim of this research was the assessment of the usefulness of the proposed monitoring method to determine structural deformations.
Źródło:: Reports on Geodesy; 2008, z. 1/84; 105-110
0867-3179
Pojawia się w:: Reports on Geodesy
Dostawca treści:: Biblioteka Nauki