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Modeling and Measuring of the Changes of the Magnetic Field Next to Non-Ferromagnetic Substances for Magnetic Susceptibility Calculation
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SYSNO ASEP 0368262 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Modeling and Measuring of the Changes of the Magnetic Field Next to Non-Ferromagnetic Substances for Magnetic Susceptibility Calculation Author(s) Marcon, P. (CZ)
Bartušek, Karel (UPT-D) RID, ORCID, SAI
Čáp, M. (CZ)Number of authors 3 Source Title Measurement 2011. - Bratislava : Slovak Academy of Sciences, 2011 - ISBN 978-80-969672-4-7 Pages s. 213-216 Number of pages 4 s. Action International Conference on Measurement 2011 /8./ Event date 27.04.2011-30.04.2011 VEvent location Smolenice Country SK - Slovakia Event type EUR Language eng - English Country SK - Slovakia Keywords COMSOL ; non-ferromagnetic ; NMR ; magnetic susceptibility Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects GAP102/11/0318 GA ČR - Czech Science Foundation (CSF) ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z20650511 - UPT-D (2005-2011) Annotation This article is focused on the principles of the magnetic susceptibility measurement of the non-ferromagnetic substances using NMR tomography. Magnetic susceptibility is calculated from changes of the magnetic field close to the cylinder shaped specimen. COMSOL program was used for modeling experiment results. Consequently, model results were compared to MR tomograph measured data. Changes of the magnetic field in space of xy cut of the specimen were integrated in both cases. Before integrating of the magnetic field changes was necessary to filter, unwrap and detect accurate position of the specimen. Magnetic susceptibility calculated from measured data is in comparison to theoretical value, as well as model value, slightly different. Difference of those values is lower than 5%. Due to the used model and measurement were extended principles of the NMR method for magnetic susceptibility measurement. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2012
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