Tracking system with five degrees of freedom using a 2D-array of Hall sensors and a permanent magnet

Authors
Schlageter, V Besse, PA Popovic, RS Kucera, P
Citation
V. Schlageter et al., Tracking system with five degrees of freedom using a 2D-array of Hall sensors and a permanent magnet, SENS ACTU-A, 92(1-3), 2001, pp. 37-42
Citations number
7
Categorie Soggetti
Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS A-PHYSICAL
ISSN journal
09244247 → ACNP
Volume
92
Issue
1-3
Year of publication
2001
Pages
37 - 42
Database
ISI
SICI code
0924-4247(20010801)92:1-3<37:TSWFDO>2.0.ZU;2-9
Abstract
Based on a 2D-array of 16 cylindrical Hall sensors and a permanent magnet, a tracking system with five degrees of freedom is analysed in this paper. T he system accuracy is studied, including offset drifts, sensitivity mismatc hes and the number of sensors. A detection distance as large as 14 cm (duri ng 1 h without calibration) is achieved using a magnet of 0.2 cm(3). The po sition and orientation of the marker is displayed in real time with a sampl ing frequency up to 50 Hz. The sensing system is small enough to be hand-he ld and can be used in a normal environment. (C) 2001 Elsevier Science B.V. All rights reserved.