Title :
Wireless ac magnetic markers for motion capturing
Author :
Yamaguchi, M. ; Ajiro, N. ; Yabukami, S. ; Arai, K.I. ; Itagaki, A. ; Tsuji, S. ; Wako, N.
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
fDate :
7/1/2001 12:00:00 AM
Abstract :
This paper reports on design criteria and characteristics of a wireless ac marker that will be used for a magnetic motion capturing system capable of sensing multiple markers. The calculation of generated magnetic fields agrees with experimental results, demonstrating usefulness for designing ac markers. These simulations indicate fields as large as 0.19 A/m can be generated at 0.1 m from the marker edge by using a ferrite of 1.5 mm diameter and a layer of 72 parallel windings of 0.11 mm diameter wire, where the copper losses are close to the core losses
Keywords :
ferrite devices; magnetic cores; magnetic leakage; magnetic sensors; motion measurement; MnZnFe2O4; copper losses; core losses; motion capturing; multiple marker sensing; parallel windings; wireless ac magnetic markers; AC generators; Batteries; Copper; Ferrites; Frequency; Magnetic cores; Magnetic fields; Magnetic sensors; Magnetic separation; Wireless sensor networks;
Journal_Title :
Magnetics, IEEE Transactions on
