@ARTICLE{Poniatowska_Małgorzata_Parameters_2011,
 author={Poniatowska, Małgorzata},
 number={No 2},
 journal={Metrology and Measurement Systems},
 pages={199-208},
 howpublished={online},
 year={2011},
 publisher={Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation},
 abstract={Obtaining discrete data is inseparably connected with losing information on surface properties. In contact measurements, the ball tip functions as a mechanical-geometrical filter. In coordinate measurements the coordinates of the measurement points of a discrete distribution on the measured surface are obtained. Surface geometric deviations are represented by a set of local deviations, i.e. deviations of measurement points from the nominal surface (the CAD model), determined in a direction normal to this surface. The results of measurements depend both on the ball tip diameter and the grid size of measurement points. This article presents findings on the influence of the ball tip diameter and the grid size on coordinate measurement results along with the experimental results of measurement of a free-form milled surface, in order to determine its local geometric deviations. One section of the surface under research was measured using different measurement parameters. The whole surface was also scanned with different parameters, observing the rule of selecting the tip diameter d and the sampling interval T in the ratio of 2:1.},
 type={Artykuły / Articles},
 title={Parameters for CMM Contact Measurements of Free-Form Surfaces},
 URL={http://journals.pan.pl/Content/89764/PDF/Journal10178-VolumeXVIII%20Issue2_03paper.pdf},
 doi={10.2478/v10178-011-0003-z},
 keywords={coordinate measurements, free-form surface, geometric deviations, measurement parameters},
}