Work

Tracking a Millimetric Dual-Magnet Assembly: Toward Detecting Torsional Eye Motion

Year: 2025

Type: article

Abstract: Tracking eye movements with high precision is crucial for various medical and technological applications, yet detecting subtle torsional motion remains a challenge. This paper presents a magnetic sensor system that accurately tracks the full 6-degree-of-freedom motion (6-DoF) of a miniature dual-magnet assembly. This work leverages two (nearly) orthogonal magnetic dipoles, building upon previous results achieved with a single-dipole source. The 6-DoF tracking and the achieved level of precision may enable the detection of complex eye movements, including torsion. Moreover, the system can also track head orientation, expanding its applications in biomedical research, assistive technologies, and human-computer interaction.

Source: IEEE Sensors Journal

DOI: 10.1109/jsen.2025.3561198

Authors: Giuseppe Bevilacqua, Valerio Biancalana, Yordanka Dancheva

Institution: University of Siena

Language: English

Topic: Magnetic Field Sensors Techniques

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,645

Funder: Università degli Studi di Siena