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Problem of Non-Measured Points in Surface Texture Measurements

Pawlus P., Reizer R., Wieczorowski M.

Metrology and Measurement Systems

2017

Vol. 24, nr 3

525--536

This work is focused on the issue of non-measured points – one of the most important problems in surface texture measurements using optical methods. The fundamental aim of this research is to analyse errors of surface texture measurements caused by the presence of non-measured points. This study is divided into two parts. In the first part, circles with non-measured points were artificially created on peak portions of measured surfaces. In the second part – the results of measurement by a Talysurf CCI Lite interferometer were analysed. A measurement area of 3.3 × 3.3 mm contained 1024 × 1024 points. The measurements were performed with different intensity of light. Changes of parameters regarding the analysed errors depended on a surface type. The following parameters are susceptible to errors: skewness Ssk, areal material ratio Smr, as well as the following feature parameters: Spd, Sda, Sdv, Sha and Shv. Inaccuracies of measurement in valley parts of two-process textures led usually to larger errors of parameter computations compared with deviations in peak portions.

Pomiary struktury chropowatości powierzchni implantów stomatologicznych

Tubielewicz K., Zaborski A., Michalczuk H., Chmielnik I.P.

Mechanik

2013

R. 86, nr 7

556--559

Omówiono metodykę pomiaru i uzyskane wyniki różnych wskaźników chropowatości powierzchni wyznaczone dla najczęściej stosowanych konstrukcji i sposobów obróbki powierzchni wykorzystywanych przy wykonywaniu implantów dentystycznych. Do przeprowadzenia pomiarów wybrano laboratoryjny profilografometr New Form Talysurf 2D/3D 120 firmy Taylor Hobson z oprogramowaniem „Ultra Surface 5.21” i „TalyMap Platinium 5.1.1”.

The paper brings forward the measurement methodology and obtained results for different surface roughness indicators determined for constructions and surfacing methods most often used in practice in making dental implants. The New Form Talysurf 2D/3D 120 profilographometer complete with the „Ultra Surface 5.21” and „TalyMap Platinium 5.1.1 software applications, supplied by Taylor Hobson, was chosen for carrying out measurements.