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Article

Fast, Cheap, and Scalable Magnetic Tracker with an Array of Magnetoresistors

1
DIISM, Siena University, Via Roma 56, 53100 Siena, Italy
2
DSFTA, Siena University, Via Roma 56, 53100 Siena, Italy
*
Author to whom correspondence should be addressed.
Current address: Department of Physics, Pisa University, Largo Pontecorvo, 3, 56127 Pisa, Italy.
Current address: Aerospazio Tecnologie srl, Strada di Ficaiole, 53040 Rapolano Terme (SI), Italy.
§
Current address: Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK.
Instruments 2021, 5(1), 3; https://doi.org/10.3390/instruments5010003
Received: 26 October 2020 / Revised: 12 December 2020 / Accepted: 23 December 2020 / Published: 28 December 2020
We present the hardware of a cheap multi-sensor magnetometric setup, where a relatively large set of magnetic field components is measured in several positions by calibrated magnetoresistive detectors. The setup is developed to map the (inhomogeneous) field generated by a known magnetic source, which is measured and then discerned from the background (homogeneous) geomagnetic field. The data output from this hardware can be successfully and reliably used to retrieve the position and orientation of the magnetic source with respect to the sensor frame, together with the orientation of the frame with respect to the environmental field. Possible applications of the setup are briefly discussed, and a synthetic description of the methods of data elaboration and analysis is provided. View Full-Text
Keywords: tracking; magnetic tracker; magnetoresistor; magnetic sensor; sensor array; microcontroller; eye motion tracking; magnetic tracker; magnetoresistor; magnetic sensor; sensor array; microcontroller; eye motion
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MDPI and ACS Style

Biancalana, V.; Cecchi, R.; Chessa, P.; Bevilacqua, G.; Dancheva, Y.; Vigilante, A. Fast, Cheap, and Scalable Magnetic Tracker with an Array of Magnetoresistors. Instruments 2021, 5, 3. https://doi.org/10.3390/instruments5010003

AMA Style

Biancalana V, Cecchi R, Chessa P, Bevilacqua G, Dancheva Y, Vigilante A. Fast, Cheap, and Scalable Magnetic Tracker with an Array of Magnetoresistors. Instruments. 2021; 5(1):3. https://doi.org/10.3390/instruments5010003

Chicago/Turabian Style

Biancalana, Valerio, Roberto Cecchi, Piero Chessa, Giuseppe Bevilacqua, Yordanka Dancheva, and Antonio Vigilante. 2021. "Fast, Cheap, and Scalable Magnetic Tracker with an Array of Magnetoresistors" Instruments 5, no. 1: 3. https://doi.org/10.3390/instruments5010003

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