In many different circumstances, it is necessary to know both the diameter and distance between two or more cylindrical objects. These examples include, a 3D printer that has two injection nozzles, various production machines that have several machining heads that need information about their mutual distance for proper operation and also various products that are used for further assembly and previously require a dimensional control. Optical and laser measurement of cylindrical bodies, especially those made of metallic materials, is relatively difficult due to their shape and high reflectivity, so in general there are no conventional, affordable systems that would allow these measurements to be made. The goal of this thesis is to design appropriate software, that would form a measuring device with measurements performed by a point laser triangulation method on a moving table. On this self-developed, relatively affordable and simple system, it would be possible to measure the diameter, as well as to detect the mutual distance of cylindrical objects on a plane with the highest possible accuracy. As part of this work, we look upon the design of a prototype mechanical system, the development of software for the execution of relevant calculations, as well as carrying out the necessary measurements and their data analysis. Finally, we perform an analysis of the measurement uncertainty of the results and system validation.
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