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Comparison of X-ray microtomography possibilities of application in metrology with conventional approaches
Budiš, Marek ; Pernikář, Jiří (referee) ; Novotný, Jan (advisor)
Bc. Marek Budiš Comparison of X-ray microtomography possibilities of application in metrology with conventional approaches Master thesis, Institute of production machines, systems and robotics, BUT FME Brno This master thesis is focused on the analysis of metrological possibilities of using computer X-ray microtomography methods in the industry. The work contains a description of the methods, equipment and measurement. Listed are the main advantages of using X-ray tomography in metrology in comparison with coordinate measuring machine. The work deals with the measurement accuracy of microtomography machine GE V|tome|x L 240, analyzing sources of instrument uncertainty and its quantification. The work was also devised a practical table for the calculation of uncertainty of measurement. The practical part was also measuring on real samples of the industry.
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Comparison of X-ray microtomography possibilities of application in metrology with conventional approaches
Budiš, Marek ; Pernikář, Jiří (referee) ; Novotný, Jan (advisor)
Bc. Marek Budiš Comparison of X-ray microtomography possibilities of application in metrology with conventional approaches Master thesis, Institute of production machines, systems and robotics, BUT FME Brno This master thesis is focused on the analysis of metrological possibilities of using computer X-ray microtomography methods in the industry. The work contains a description of the methods, equipment and measurement. Listed are the main advantages of using X-ray tomography in metrology in comparison with coordinate measuring machine. The work deals with the measurement accuracy of microtomography machine GE V|tome|x L 240, analyzing sources of instrument uncertainty and its quantification. The work was also devised a practical table for the calculation of uncertainty of measurement. The practical part was also measuring on real samples of the industry.
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Design and use of novel compression device for microtomography under applied load
Fíla, Tomáš ; Zlámal, Petr ; Koudelka_ml., Petr ; Jiroušek, Ondřej ; Doktor, Tomáš ; Kytýř, Daniel
This paper deals with modification and usage of custom-designed compression device, that allows real time X-ray tomography scanning of specimen under applied pressure. In this case microtomography is used to obtain data required to determine specimens morphology and to develop 3D material model (especially for cellular materials such as bones, metal foams and quasi-brittle materials or particle composites such as concrete or cementitious composites). Important design changes were made in the existing device frame to increase its load capabilities, stiffness and to accomodate a larger specimen. Finally device displacement measurements were conducted and calibration experiment was carried out.
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Deformační analýza trabekulární kosti za použití mikrotomografie v čase
Jiroušek, Ondřej ; Zlámal, Petr ; Kytýř, Daniel ; Kroupa, M.
To explore the possibilities of modern X-ray detectors an experimental setup with trabecular bone sample under uni-axial load in special loading device enabling time-lapse tomography was used. The load was applied gradually and after complete tomographic scanning the deformed shape was reconstructed. Collected 3-D images help to study the deformation process of the micro-structure where collapsing of individual trabeculae can be observed and compared to finite element simulations.
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