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Examination of optical coordinate measurement systems in the conditions of their operation

Owczarek D., Ostrowska K., Sładek J. A.

Journal of Machine Construction and Maintenance - Problemy Eksploatacji

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2017

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no. 4

7--19

EN

Intense advancement of optical measurement techniques, which is accompanied by the development of new calibration technologies and accuracy assessment methods determine new fields of necessary research and verification tests. In the Laboratory of Coordinate Metrology of the Cracow University of Technology (LCM CUT), works have been conducted for years dedicated to optical coordinate measurements. It was observed that certain external factors have a dominating influence in the context of value of received results. As a result, a cycle of research in operational conditions was performed, and the most important of them undergo a thorough analysis for exerting influence on the measurement result.

PL

Intensywny rozwój techniki pomiarów optycznych, któremu towarzyszy opracowywanie nowych technologii wzorcowania oraz metod oceny dokładności pomiaru, wyznacza nowe obszary koniecznych badań i testów weryfikacyjnych. W Laboratorium Metrologii Współrzędnościowej na Politechnice Krakowskiej (LMW PK) od lat trwają prace poświęcone współrzędnościowym pomiarom optycznym, podczas których zaobserwowano dominację pewnych czynników zewnętrznych w kontekście wartości otrzymanego wyniku. W następstwie przeprowadzono cykl badań w warunkach eksploatacyjnych i poddano szczegółowej analizie kluczowe z nich pod kątem wywierania wpływu na wynik pomiaru.

2

Validation of the metrological model of coordinate measuring arm using multifeature check

Gromczak K., Ostrowska K., Owczarek D., Sładek J.

Advances in Science and Technology. Research Journal

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2015

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Vol. 9, nr 28

120--124

EN

The article presents the validation research scheme of metrological model of coordinate measuring arm (CMA) using multifeature check. The scheme shows the comparison of the calibration results of the check using selected coordinate methods and criteria of validation. The comparison shows the insignificance of differences between the obtained results of both: metrological model of CMA and multi-position method. It evidently proves the correctness of the development of metrological model of CMA. The use of appropriate quality multifeature check also had a significant impact on the results. This check is now the most accurate measurement length check and its use for this validation process was the most suitable.

3

Estimation of measurement uncertainty with the use of uncertainty database calculated for optical coordinate measurements of basic geometry elements

Owczarek D., Ostrowska K., Harmatys W, Sładek J.

Advances in Science and Technology. Research Journal

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2015

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Vol. 9, nr 27

112--117

EN

The paper presents a method for estimating the uncertainty of optical coordinate measurement based on the use of information about the geometry and the size of measured object as well as information about the measurement system, i.e. maximum permissible error (MPE) of the machine, selection of a sensor, and also the required measurement accuracy, the number of operators, measurement strategy and external conditions contained in the developed uncertainty database. Estimation of uncertainty is done with the use of uncertainties of measurements of basic geometry elements determined by methods available in the Laboratory of Coordinate Metrology at Cracow University of Technology (LCM CUT) (multi-position, comparative and developed in the LCM CUT method dedicated for non-contact measurements) and then with the use of them to determine the uncertainty of a given measured object. Research presented in this paper are aimed at developing a complete database containing all information needed to estimate the measurement uncertainty of various objects, even of a very complex geometry based on previously performed measurements.

4

Model symulacyjny prognozowania struktur energetycznych gospodarki bytowo-komunalnej

Owczarek D., Grochowski J.

Prace Naukowe Politechniki Warszawskiej. Konferencje

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2003

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z. 23

107--115

PL

W referacie przedstawiono charakterystykę modelu symulacyjnego umożliwiającego badanie potrzeb energetycznych sektora komunalno-bytowego. Wyjaśniono sens prowadzenia badań w zakresie elektrochłonności i energochłonności różnych działów gospodarki oraz podano metodykę wyznaczania potrzeb energetycznych wybranych sekcji sektora bytowo-komunałnego.

EN

This article contains the profile of simulating model, which give a possibility to research energy demand in communal-living sector. It was explained a sense of running research in a range of energy demand for different branch of economy. It also shows methodology of calculation energy demand in selected section of communal-Jiving sector.