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Accuracy of the element geometry mapping using non-invasive computer tomography method

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EN
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EN
Non-invasive method of the measurement and identification of shape and geometrical characteristics of measured detail based on the computer tomograph is widely applied in medicine with high efficiency. The paper is aimed at presenting the metrological analysis of the accuracy of shape reproduction. The examined shape was described due to the tomography and compared to the results of coordinate measurement. The comparative accuracy analysis of the tomography was performed for the typical details, as well as for the masters made with high accuracy. Using the results of the analysis, the respective models of measured details were created and used as a nominal in the further investigations. The results of the measurement with tomography were compared with the results achieved from the measurement by means of typical coordinate measuring machines and by means of 3D measurement optical scanner. Analysis of the gained values of the form deviations and important geometrical characteristics enabled to perform complex analysis of the shape reproduction of the examined detail with the method of computer tomography. The main purpose of the performed researches was the determination of the reproduction accuracy of surface measured with non-invasive computer tomography method. The investigations and analysis have been performed with the following equipment: computer tomograph, 3D printer and coordinate optical scanner supported with specialized software for advanced CAD data analysis.
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  • Poznan University of Technology, Institute of Mechanical Technology, Division of the Metrology and Measurement Systems, Poznan, Poland, miroslaw.grzelka@gmail.com
Bibliografia
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  • [8] Ratajczyk E., „Tomografia komputerowa CT w zastosowaniach przemysłowych. Cz. II”, MECHANIK Miesięcznik Naukowo-Techniczny, no. 03, 2011, pp. 226-231. (in Polish)
  • [9] Ratajczyk E., „Tomografia komputerowa CT w zastosowaniach przemysłowych. Cz. III. Tomografy i ich parametry, przykłady zastosowań”, MECHANIK Miesięcznik Naukowo-Techniczny, no. 04, 2011, pp. 326-331. (in Polish).
  • [10] Ratajczyk E., „Tomografia komputerowa CT w zastosowaniach przemysłowych. Cz. IV. Oprogramowania, parametry dokładności i metody ich wyznaczania”, MECHANIK Miesięcznik Naukowo-Techniczny, no. 05-06, 2011, pp. 474-483. (in Polish)
  • [11] Wieczorowski M., Miechowicz S., Markowska O., Budzik G., Grzelka M., “Methodology and analysis of the reproduction and fitting the implant or filling destined for deformed scull In the processes of RE and RP with coordinate metrology”. In: IC2B’2009, International Conference on Bioengineering & Biomaterials IC2B’2009, 18-20.03.2009, Meknes, Marocco.
  • [12] Grzelka M., Trafarski A., Wieczorowski M., Staniek R., “Metrological analysis of the reproduced detail accuracy with the non-invasive computer tomography method combined with coordinate measurements”. In: IC2B’2009, International Conference on Bioengineering & Biomaterials, 18-20.03.2009, Meknes, Marocco.
  • [13] Grzelka M., Budzik G., Markowska O., Gapiński B., „Analiza dokładności wykonania implantu czaszki z wykorzystaniem technologii trójwymiarowego druku (3DP) i współrzędnościowego skanera 3D”. In: IX Sympozjum Modelowanie i pomiary w medycynie. Krynica 10-14.05.2009. Ed. by Janusz Gajda, Wydawnictwo Katedry Metrologii AGH, 2009, pp. 197-202, ISBN 978-83-61528-08-1. (in Polish)
  • [14] Grzelka M., Trafarski A., „Metrologiczna analiza dokładności odtworzenia kształtu badanego elementu nieinwazyjną metodą tomografii komputerowej z wykorzystaniem współrzędnościowych pomiarów”. In: IX Sympozjum Modelowanie i pomiary w medycynie, Krynica 10-14.05.2009. Ed. by Janusz Gajda. Wydawnictwo Katedry Metrologii AGH 2009, s, 183 – 190, ISBN 978-83-61528-08-1. (in Polish)
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  • [16] Liu W., Rapid Prototyping and engineering applications – a toolbox for prototype development, Taylor & Francis Group, 2008.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ8-0016-0016
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