Validation of a Fast and Accurate Magnetic Tracker Operating in the Environmental Field

We characterize the performance of a system based on a magnetoresistor array. This instrument is developed to map the magnetic field, and to track a dipolar magnetic source in the presence of a static homogeneous field. The position and orientation of the magnetic source with respect to the sensor f...

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Bibliographic Details
Main Authors:	Valerio Biancalana, Roberto Cecchi, Piero Chessa, Marco Mandalà, Giuseppe Bevilacqua, Yordanka Dancheva, Antonio Vigilante
Format:	Article
Language:	English
Published:	MDPI AG 2021-03-01
Series:	Instruments
Subjects:	tracking magnetic tracking eye tracking sensor array eye motion
Online Access:	https://www.mdpi.com/2410-390X/5/1/11

id	doaj-7c3ca6e68d7d4341bd2f8278490fcb4e
record_format	Article
spelling	doaj-7c3ca6e68d7d4341bd2f8278490fcb4e2021-03-06T00:04:34ZengMDPI AGInstruments2410-390X2021-03-015111110.3390/instruments5010011Validation of a Fast and Accurate Magnetic Tracker Operating in the Environmental FieldValerio Biancalana0Roberto Cecchi1Piero Chessa2Marco Mandalà3Giuseppe Bevilacqua4Yordanka Dancheva5Antonio Vigilante6Department of Information Engineering and Mathematics (DIISM), Siena University, Via Roma 56, 53100 Siena, ItalyDepartment of Physical Sciences, Earth and Environment (DSFTA), Siena University, Via Roma 56, 53100 Siena, ItalyDepartment of Information Engineering and Mathematics (DIISM), Siena University, Via Roma 56, 53100 Siena, ItalyDepartment of Medicine, Surgery and Neuroscience (DSMCN), Siena University, Viale Bracci 16, 53100 Siena, ItalyDepartment of Information Engineering and Mathematics (DIISM), Siena University, Via Roma 56, 53100 Siena, ItalyDepartment of Physical Sciences, Earth and Environment (DSFTA), Siena University, Via Roma 56, 53100 Siena, ItalyDepartment of Information Engineering and Mathematics (DIISM), Siena University, Via Roma 56, 53100 Siena, ItalyWe characterize the performance of a system based on a magnetoresistor array. This instrument is developed to map the magnetic field, and to track a dipolar magnetic source in the presence of a static homogeneous field. The position and orientation of the magnetic source with respect to the sensor frame is retrieved together with the orientation of the frame with respect to the environmental field. A nonlinear best-fit procedure is used, and its precision, time performance, and reliability are analyzed. This analysis is performed in view of the practical application for which the system is designed that is an eye-tracking diagnostics and rehabilitative tool for medical purposes, which require high speed (≥100 Sa/s) and sub-millimetric spatial resolution. A throughout investigation on the results makes it possible to list several observations, suggestions, and hints, which will be useful in the design of similar setups.https://www.mdpi.com/2410-390X/5/1/11trackingmagnetic trackingeye trackingsensor arrayeye motion
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Valerio Biancalana Roberto Cecchi Piero Chessa Marco Mandalà Giuseppe Bevilacqua Yordanka Dancheva Antonio Vigilante
spellingShingle	Valerio Biancalana Roberto Cecchi Piero Chessa Marco Mandalà Giuseppe Bevilacqua Yordanka Dancheva Antonio Vigilante Validation of a Fast and Accurate Magnetic Tracker Operating in the Environmental Field Instruments tracking magnetic tracking eye tracking sensor array eye motion
author_facet	Valerio Biancalana Roberto Cecchi Piero Chessa Marco Mandalà Giuseppe Bevilacqua Yordanka Dancheva Antonio Vigilante
author_sort	Valerio Biancalana
title	Validation of a Fast and Accurate Magnetic Tracker Operating in the Environmental Field
title_short	Validation of a Fast and Accurate Magnetic Tracker Operating in the Environmental Field
title_full	Validation of a Fast and Accurate Magnetic Tracker Operating in the Environmental Field
title_fullStr	Validation of a Fast and Accurate Magnetic Tracker Operating in the Environmental Field
title_full_unstemmed	Validation of a Fast and Accurate Magnetic Tracker Operating in the Environmental Field
title_sort	validation of a fast and accurate magnetic tracker operating in the environmental field
publisher	MDPI AG
series	Instruments
issn	2410-390X
publishDate	2021-03-01
description	We characterize the performance of a system based on a magnetoresistor array. This instrument is developed to map the magnetic field, and to track a dipolar magnetic source in the presence of a static homogeneous field. The position and orientation of the magnetic source with respect to the sensor frame is retrieved together with the orientation of the frame with respect to the environmental field. A nonlinear best-fit procedure is used, and its precision, time performance, and reliability are analyzed. This analysis is performed in view of the practical application for which the system is designed that is an eye-tracking diagnostics and rehabilitative tool for medical purposes, which require high speed (≥100 Sa/s) and sub-millimetric spatial resolution. A throughout investigation on the results makes it possible to list several observations, suggestions, and hints, which will be useful in the design of similar setups.
topic	tracking magnetic tracking eye tracking sensor array eye motion
url	https://www.mdpi.com/2410-390X/5/1/11
work_keys_str_mv	AT valeriobiancalana validationofafastandaccuratemagnetictrackeroperatingintheenvironmentalfield AT robertocecchi validationofafastandaccuratemagnetictrackeroperatingintheenvironmentalfield AT pierochessa validationofafastandaccuratemagnetictrackeroperatingintheenvironmentalfield AT marcomandala validationofafastandaccuratemagnetictrackeroperatingintheenvironmentalfield AT giuseppebevilacqua validationofafastandaccuratemagnetictrackeroperatingintheenvironmentalfield AT yordankadancheva validationofafastandaccuratemagnetictrackeroperatingintheenvironmentalfield AT antoniovigilante validationofafastandaccuratemagnetictrackeroperatingintheenvironmentalfield
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Validation of a Fast and Accurate Magnetic Tracker Operating in the Environmental Field

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