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Article

Magnetic Position System Design Method Applied to Three-Axis Joystick Motion Tracking

1
Silicon Austria Labs GmbH, Sensor Systems, Europastraße 12, 9524 Villach, Austria
2
University of Vienna, Physics of Functional Materials, Boltzmanngasse 5, 1090 Vienna, Austria
3
ZF Friedrichshafen AG, Graf-von-Soden-Platz 1, 88046 Friedrichshafen, Germany
4
ZF Padova S.r.l., Marine and Special Driveline Technology, Via S. Andrea, 16, 38062 Arco (TN), Italy
5
University of Vienna Research Platform MMM Mathematics-Magnetism-Materials, Oskar-Morgenstern-Platz 1, 1090 Vienna, Austria
*
Authors to whom correspondence should be addressed.
Sensors 2020, 20(23), 6873; https://doi.org/10.3390/s20236873
Received: 7 November 2020 / Revised: 25 November 2020 / Accepted: 29 November 2020 / Published: 1 December 2020
(This article belongs to the Special Issue Magnetic Sensors 2020)
This manuscript discusses the difficulties with magnetic position and orientation (MPO) system design and proposes a general method for finding optimal layouts. The formalism introduces a system quality measure through state separation and reduces the question “How to design an MPO system?” to a global optimization problem. The latter is then solved by combining differential evolution algorithms with magnet shape variation based on analytical computations of the field. The proposed formalism is then applied to study possible realizations of continuous three-axis joystick motion tracking, realized with just a single magnet and a single 3D magnetic field sensor. The computations show that this is possible when a specific design condition is fulfilled and that large state separations as high as 1mT/ can be achieved under realistic conditions. Finally, a comparison to state-of-the-art design methods is drawn, computation accuracy is reviewed critically, and an experimental validation is presented. View Full-Text
Keywords: magnetic position sensor systems; computational magnetism; magnet system design; analytical method; magnetic joystick; python magnetic position sensor systems; computational magnetism; magnet system design; analytical method; magnetic joystick; python
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MDPI and ACS Style

Malagò, P.; Slanovc, F.; Herzog, S.; Lumetti, S.; Schaden, T.; Pellegrinetti, A.; Moridi, M.; Abert, C.; Suess, D.; Ortner, M. Magnetic Position System Design Method Applied to Three-Axis Joystick Motion Tracking. Sensors 2020, 20, 6873. https://doi.org/10.3390/s20236873

AMA Style

Malagò P, Slanovc F, Herzog S, Lumetti S, Schaden T, Pellegrinetti A, Moridi M, Abert C, Suess D, Ortner M. Magnetic Position System Design Method Applied to Three-Axis Joystick Motion Tracking. Sensors. 2020; 20(23):6873. https://doi.org/10.3390/s20236873

Chicago/Turabian Style

Malagò, Perla, Florian Slanovc, Stefan Herzog, Stefano Lumetti, Thomas Schaden, Andrea Pellegrinetti, Mohssen Moridi, Claas Abert, Dieter Suess, and Michael Ortner. 2020. "Magnetic Position System Design Method Applied to Three-Axis Joystick Motion Tracking" Sensors 20, no. 23: 6873. https://doi.org/10.3390/s20236873

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