Empirical Study of Magnet Distance on Magneto-Mechanical Resonance Frequency
Determining the position and orientation of a medical instrument is essential for accurate procedures in endoscopy, surgery, and vascular interventions. Recently, a novel sensor based on torsional pendulum-like magneto-mechanical motion has been proposed. This sensor is passive, wireless and inducti...
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Format: | Article |
Language: | English |
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De Gruyter
2024-12-01
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Series: | Current Directions in Biomedical Engineering |
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Online Access: | https://doi.org/10.1515/cdbme-2024-2092 |
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author | Knopp Tobias Mohn Fabian Foerger Fynn Thieben Florian Hackelberg Niklas Faltinath Jonas Tsanda Artyom Boberg Marija Möddel Martin |
author_facet | Knopp Tobias Mohn Fabian Foerger Fynn Thieben Florian Hackelberg Niklas Faltinath Jonas Tsanda Artyom Boberg Marija Möddel Martin |
author_sort | Knopp Tobias |
collection | DOAJ |
description | Determining the position and orientation of a medical instrument is essential for accurate procedures in endoscopy, surgery, and vascular interventions. Recently, a novel sensor based on torsional pendulum-like magneto-mechanical motion has been proposed. This sensor is passive, wireless and inductively coupled to a transmit-receive coil array. This setup allows the determination of all 6 degrees of freedom using the characteristic resonance of the sensor. Additional physical quantities such as temperature and pressure can be measured based on the frequency of the sensor, which mainly depends on the distance between the two involved permanent magnets. In this study, we analyze a sensor composed of two magnetic cylinders with variable magnet-to-magnet distance and a basic physical model based on a dipole assumption. Experimental analysis of the resonance frequency and comparison with the model values show both qualitative and quantitative agreement with an average relative error of only 0.8 %. This validates the implemented model and shows the suitability of our magneticmechanical resonator made from cylindrical permanent magnets for sensing applications. |
format | Article |
id | doaj-art-26a4dd09f4ac4856b70e40d8493a1b6d |
institution | Kabale University |
issn | 2364-5504 |
language | English |
publishDate | 2024-12-01 |
publisher | De Gruyter |
record_format | Article |
series | Current Directions in Biomedical Engineering |
spelling | doaj-art-26a4dd09f4ac4856b70e40d8493a1b6d2025-01-02T05:56:33ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042024-12-0110437738010.1515/cdbme-2024-2092Empirical Study of Magnet Distance on Magneto-Mechanical Resonance FrequencyKnopp Tobias0Mohn Fabian1Foerger Fynn2Thieben Florian3Hackelberg Niklas4Faltinath Jonas5Tsanda Artyom6Boberg Marija7Möddel Martin8Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf,Hamburg, GermanySection for Biomedical Imaging, University Medical Center Hamburg-Eppendorf,Hamburg, GermanySection for Biomedical Imaging, University Medical Center Hamburg-Eppendorf,Hamburg, GermanySection for Biomedical Imaging, University Medical Center Hamburg-Eppendorf,Hamburg, GermanySection for Biomedical Imaging, University Medical Center Hamburg-Eppendorf,Hamburg, GermanySection for Biomedical Imaging, University Medical Center Hamburg-Eppendorf,Hamburg, GermanySection for Biomedical Imaging, University Medical Center Hamburg-Eppendorf,Hamburg, GermanySection for Biomedical Imaging, University Medical Center Hamburg-Eppendorf,Hamburg, GermanySection for Biomedical Imaging, University Medical Center Hamburg-Eppendorf,Hamburg, GermanyDetermining the position and orientation of a medical instrument is essential for accurate procedures in endoscopy, surgery, and vascular interventions. Recently, a novel sensor based on torsional pendulum-like magneto-mechanical motion has been proposed. This sensor is passive, wireless and inductively coupled to a transmit-receive coil array. This setup allows the determination of all 6 degrees of freedom using the characteristic resonance of the sensor. Additional physical quantities such as temperature and pressure can be measured based on the frequency of the sensor, which mainly depends on the distance between the two involved permanent magnets. In this study, we analyze a sensor composed of two magnetic cylinders with variable magnet-to-magnet distance and a basic physical model based on a dipole assumption. Experimental analysis of the resonance frequency and comparison with the model values show both qualitative and quantitative agreement with an average relative error of only 0.8 %. This validates the implemented model and shows the suitability of our magneticmechanical resonator made from cylindrical permanent magnets for sensing applications.https://doi.org/10.1515/cdbme-2024-2092magneto-mechanical resonatorsensingresonance frequencymagnet-to-magnet distance |
spellingShingle | Knopp Tobias Mohn Fabian Foerger Fynn Thieben Florian Hackelberg Niklas Faltinath Jonas Tsanda Artyom Boberg Marija Möddel Martin Empirical Study of Magnet Distance on Magneto-Mechanical Resonance Frequency Current Directions in Biomedical Engineering magneto-mechanical resonator sensing resonance frequency magnet-to-magnet distance |
title | Empirical Study of Magnet Distance on Magneto-Mechanical Resonance Frequency |
title_full | Empirical Study of Magnet Distance on Magneto-Mechanical Resonance Frequency |
title_fullStr | Empirical Study of Magnet Distance on Magneto-Mechanical Resonance Frequency |
title_full_unstemmed | Empirical Study of Magnet Distance on Magneto-Mechanical Resonance Frequency |
title_short | Empirical Study of Magnet Distance on Magneto-Mechanical Resonance Frequency |
title_sort | empirical study of magnet distance on magneto mechanical resonance frequency |
topic | magneto-mechanical resonator sensing resonance frequency magnet-to-magnet distance |
url | https://doi.org/10.1515/cdbme-2024-2092 |
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