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Empirical study of magnet distance on magneto-mechanical resonance frequency
Citation Link: https://doi.org/10.15480/882.14175
Publikationstyp
Journal Article
Date Issued
2024-12-19
Sprache
English
Author(s)
Faltinath, Jonas
Tsanda, Artyom
TORE-DOI
Volume
10
Issue
4
Start Page
377
End Page
380
Citation
Current Directions in Biomedical Engineering 10 (4): 377-380 (2024)
Publisher DOI
Scopus ID
Publisher
De Gruyter
Peer Reviewed
true
Determining the position and orientation of amedical instrument is essential for accurate procedures in en-doscopy, surgery, and vascular interventions. Recently, a novelsensor based on torsional pendulum-like magneto-mechanicalmotion has been proposed. This sensor is passive, wireless andinductively coupled to a transmit-receive coil array. This setupallows the determination of all 6 degrees of freedom usingthe characteristic resonance of the sensor. Additional physicalquantities such as temperature and pressure can be measuredbased on the frequency of the sensor, which mainly dependson the distance between the two involved permanent magnets.In this study, we analyze a sensor composed of two magneticcylinders with variable magnet-to-magnet distance and a basicphysical model based on a dipole assumption. Experimentalanalysis of the resonance frequency and comparison with themodel values show both qualitative and quantitative agreementwith an average relative error of only 0.8 %. This validates theimplemented model and shows the suitability of our magnetic-mechanical resonator made from cylindrical permanent mag-nets for sensing applications.
Subjects
Magneto-Mechanical Resonator
Sensing
Resonance Frequency
Magnet-to-Magnet Distance
DDC Class
610: Medicine, Health
Publication version
publishedVersion
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Name
10.1515_cdbme-2024-2092.pdf
Type
Main Article
Size
3.41 MB
Format
Adobe PDF