@article{ref1,
title="An alternative approach to control measurements of crane rails",
journal="Sensors (Basel)",
year="2012",
author="Marjetič, Aleš and Kregar, Klemen and Ambrožič, Tomaž and Kogoj, Dušan",
volume="12",
number="5",
pages="5906-5918",
abstract="Horizontal and vertical positions of points for the control assessment of crane rails are classically determined separately. The procedure is time consuming and causes non-homogenous accuracy of the horizontal and vertical position of control points. The proposed alternative approach is based on polar measurements using a high accuracy total station instrument and a special platform with two precise surveying prisms fixed on it. Measurements are carried out from a single station thus ensuring a common coordinate system and homogenous accuracy. The position of the characteristic point of a rail is derived from the measured positions of both prisms with known geometry of the platform. The influence of platform non-horizontality is defined, along with its elimination procedure. Accuracy assessment is ensured with redundant measurements. Result of the proposed procedure is a numerical and graphical presentation of characteristic points. The control parameters required in international Eurocode standards are easily determined from them.<p /> <p>Language: en</p>",
language="en",
issn="1424-8220",
doi="10.3390/s120505906",
url="http://dx.doi.org/10.3390/s120505906"
}