Dupuis, Jan; Kuhlmann, Heiner: High-Precision Surface Inspection: Uncertainty Evaluation within an Accuracy Range of 15μm with Triangulation-based Laser Line Scanners. In: Journal of Applied Geodesy. 8, 2, 109--118.
Online-Ausgabe in bonndoc: http://hdl.handle.net/20.500.11811/8359
@article{handle:20.500.11811/8359,
author = {{Jan Dupuis} and {Heiner Kuhlmann}},
title = {High-Precision Surface Inspection: Uncertainty Evaluation within an Accuracy Range of 15μm with Triangulation-based Laser Line Scanners},
publisher = {de Gruyter},
year = 2014,
month = jan,

journal = {Journal of Applied Geodesy},
volume = 8,
number = 2,
pages = 109--118,
note = {Triangulation-based range sensors, e.g. laser line scanners, are used for high-precision geometrical acquisition of free-form surfaces, for reverse engineering tasks or quality management. In contrast to classical tactile measuring devices, these scanners generate a great amount of 3D-points in a short period of time and enable the inspection of soft materials. However, for accurate measurements, a number of aspects have to be considered to minimize measurement uncertainties. This study outlines possible sources of uncertainties during the measurement process regarding the scanner warm-up, the impact of laser power and exposure time as well as scanner’s reaction to areas of discontinuity, e.g. edges. All experiments were performed using a fixed scanner position to avoid effects resulting from imaging geometry. The results show a significant dependence of measurement accuracy on the correct adaption of exposure time as a function of surface reflectivity and laser power. Additionally, it is illustrated that surface structure as well as edges can cause significant systematic uncertainties.},
url = {http://hdl.handle.net/20.500.11811/8359}
}

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