This paper is aimed to determine the effect of scanning speed on the coordinate measuring machine to the accuracy of the measured values. Experimental work focuses to measuring the circular sample with a prescribed diameter dimension on the coordinate measuring machine with a defined various scanning speed, and to detecting deviations of the measured values from conventional values of diameter of the circular sample. Detection of the interval of scanning speed where measured values were the closest to the conventional value of diameter of circular sample is the importance of this paper.

The main goal of this publication is to determine the impact of the alignment condition to the repeatability of measured values. In the experimental work were performed four series of measurements, each contains 25 individual measurements on a single component. The component was measured according to the rules for making the comparison of measured values for repeatability. This comparison of measurement results was made by using statistical methods. A given goal was completely fulfilled. Experimental work has shown a dominant impact of the alignment condition on the measured values.

The aim of this paper is the evaluation of capability of roughness measuring device SURFCOM 1900SD3. After elaboration of theoretical part of this paper, which is focused on literary study in the evaluation of measuring devices, experimental work was proposed in which conditions for measuring and evaluation of measured data are defined. After this definition of measuring conditions, experimental work was performed. For evaluation of roughness measuring device, 30 measurements on the gauge sample with exactly determined value of arithmetic mean deviation of the profile Ra was proposed. Evaluation was carried out using statistical methods, namely coefficients to define measuring device capability. The work contributed significantly to the assessment of capability of roughness measuring device SURFCOM 1900SD3, since it was required by practice.

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