Motion capture system using magnetic marker

Yabukami, S.; Kikuchi, Hiroaki; Yamaguchi, Masataka; Arai, Ken Ichi; Takahashi, Kensuke; Itagaki, A.; Wako, N.

doi:10.1109/intmag.2000.872261

Cited by 1 publication

(3 citation statements)

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“…The motion capturing system [2], [3] detects the position and movement of an object based on magnetic field measurements of the magnetic markers attached to the object. Our long-term goal is that multiple ac markers in a mm volume are detected positions with a spatial resolution of better than 1 mm and a response time faster than 10 msec.…”

Section: Role Of Ac Markers In a Motion Capturing Systemmentioning

confidence: 99%

“…The feature of this system is high spatial resolution in a limited volume using wireless markers. We have already reported on a single marker system using a NdFeB magnet as a marker [2]. Ac markers are required to generate magnetic fields of higher than 0.08 A/m (1 mOe) at the distance of 0.1 m to meet the system specifications.…”

Section: Role Of Ac Markers In a Motion Capturing Systemmentioning

confidence: 99%

“…Now the core loss resistance, , can be calculated based on and using equation (4), approximated using the ferrite maker's catalog: (4) It was assumed that the magnetic flux density was uniform in the ferrite and is given by (2).…”

Section: Analysis Of Ac Markersmentioning

confidence: 99%

See 2 more Smart Citations

Wireless ac magnetic markers for motion capturing

Yamaguchi¹,

Ajiro²,

Yabukami³

et al. 2001

IEEE Trans. Magn.

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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 result, 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 is close to the core losses.

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Section: Role Of Ac Markers In a Motion Capturing Systemmentioning

confidence: 99%

Section: Role Of Ac Markers In a Motion Capturing Systemmentioning

confidence: 99%