The Attempt to Use Levelling Rods for Testing Metric Properties of Surveying Instruments, Which are Used for Reflectorless Distance Measurements

This paper presents results of two experimental cycles of measurements performed with the use of the terrestrial laser scanner Z+F IMAGER 5006h and the reflectorless tacheometer Leica TPS 1202. These tests aimed at determination of metric properties of surveying instruments, which are used for reflectorless distance measurements and which are often applied to project the geometry of objects. In the course of research works issues influencing the reflection of a laser beam by the measured surface, as well as their influence on the data quality. In order to analyse metric properties of applied instruments, levelling rods were used as test fields of geometrically specified division. It was stated basing on the performed analyses, that the influence of the incidental angle of a laser beam on the accuracy of reflectorless measurements is included within the limits of the error of distance measurements of a given instrument. However, the uniform trend of increasing differences between measured values and the nominal value may be noticed, together with the increase of the incidental angle of the axis of collimation on the measured surface of the test field.

REFERENCES (14)

Bahadir, E., Cumhur, S., Ibrahim, B., & Taner, U., (2010). A case study on the historical peninsula of Istanbul based on three-dimensional modeling by using photogrammetry and terrestrial laser scanning. Environmental Monitoring and Assessment, Volume 165, Issue 1-4, pp. 595-601, ISNN 0167-6369.

Google Scholar

In Su Lee, Jae One Lee, Hong Joo Park & Kyoung Ho Bae (2010). Influence of fitting models and point density sample in the detection of deformations of structures using terrestrial laser scanning. KSCE Journal of Civil Engineering. Vol. 14, No. 6, pp. 905-913, ISSN 1226-7988 .

Google Scholar

Kersten, T., Mechelke, K., Lindstaedt, M. & Sternberg, H. (2009). Methods for Geometric Accuracy Invertigations of Terrestrial Laser Scanning System. PFG - Photogrammetrie Fernerkundung Geoinformation, heft 4, pp. 301-314, ISSN 1432-8364.

Google Scholar

Lenda, G. (2005). Zastosowanie funkcji sklejanych w zautomatyzowanym procesie geodezyjnej kontroli kształtu powierzchni obiektów budowlanych. Application of splinesin the automated process of controlling the shape of surface of building structures, The Doctor's Thesis, Rozprawa doktorska, AGH Kraków.

Google Scholar

Lindberg, E., Holmgren, J., Olofsson, K. & Olsson, H., (2012). Estimation of stem attributes using a combination of terrestrial and airborne laser scanning. European Journal of Forest Research, Volume 131, Issue 6, pp. 1917-1931, ISSN 1341-6979.

Google Scholar

Monserrat, O. & Crosetto, M., (2008). Deformation measurement using terrestrial laser scanning data and least squares 3D surface matching. ISPRS Journal of Photogrammetry and Remote Sensing, Volume 63, Issue 1, January 2008, pp. 142-154, ISSN 0924-2716.

Google Scholar

Pawłowski, W. (2008). Procedury oceny dokładności instrumentów geodezyjnych według standardów ISO mających status norm polskich. Procedures of evaluation of accuracy of surveying instruments according to ISO standards, which have the status of the Polish standards, Czasopismo techniczne, z. 2-Ś/2008, pp. 231-237. ISSN 0011-4561, 1897-6336.

Google Scholar

PN-ISO 17123, (2005). Optyka i instrumenty optyczne - Procedury terenowe do badania instrumentów geodezyjnych i terenowych, Optics and optical instruments - Field procedures of testing surveying and field instruments.

Google Scholar

Strach, M. (2007). Wykorzystanie tachymetrów bezreflektorowych do inwentaryzacji składowisk materiałów sypkich. Utilisation of rfeflectorless tacheometers for inventorying of granular materials dumping sites, Geomatics and environmental engineering, vol. 1/3, pp. 161-172. ISSN 1898-1135.

Google Scholar

10.

Topcon, (2013). Specyfikacja instrumentów, Specifications of instruments, http://www.tpi.com.pl/tachimet....

Google Scholar

11.

Wanic, A. (2007). Instrumentoznawstwo geodezyjne i elementy technik pomiarowych. Instrument science of surveying instruments and elements of surveying techniques, UWM Olsztyn. ISSN 978-83-7299-527-8.

Google Scholar

12.

Woźniak, M. (2009). Bezreflektorowe systemy pomiarowe w monitorowaniu przemieszczeń. Instrukcje, wytyczne, poradniki. System kompleksowego zarządzania jakością w budownictwie. Bezdotykowe metody obserwacji i pomiarów obiektów budowlanych, Reflectorless systems of surveys in monitoring of displacements. Instructions, guidelines, hands-on, A system of complex quality management in building industry. COntact=free methods of observations and measurements of building structures. 443/2009, pp. 127-135. ISBN 978 83-249-2000-6.

Google Scholar

13.

Wunderlich, T., Wasmeier, P., Ohlmann-Lauber, J., Schafer, T. & Reidl, F. (2013). Objective specifications of terrestrial laser scanners - A contribution of the geodetic laboratory at the Technische Universitat Munchen. Blue Series Books at the Chair of Geodesy, vol. 21, 03/2013. ISBN 978-3-943683-21-9.

Google Scholar

14.

Zámečníková, M., Kopacik, A., (2004). Testing of Terrestrial Laser Systems Proceedings of INGEO 2004 and FIG Regional Central and Eastern European Conference on Engineering Surveying Bratislava.

For Readers

MONITORING TECHNICAL CONDITIONS OF ENGINEERING STRUCTURES USING THE TERRESTRIAL LASER SCANNING TECHNOLOGY

Development of Large Concrete Object Geometrical Model Based on Terrestrial Laser Scanning

Utilisation Of Laser Scanning Technology And Digital Images For Measurements Of Industrial Objects - A Case Study

Complex Geodetic Research in Ukrainian Antarctic Station “Academician Vernadsky” (Years 2002 - 2005, 2013-2014)

Laser Scanning in Engineering Surveying: Methods of Measurement and Modeling of Structures

Indexes