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Development of real-time and highly accurate wireless motion capture system utilizing soft magnetic core

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7 Author(s)
Hashi, S. ; Dept. of Mater. Sci. & Technol., Gifu Univ., Japan ; Tokunaga, Y. ; Yabukami, S. ; Toyoda, M.
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Highly accurate wireless motion capture system using LC resonant magnetic marker has been developed. The marker consists of soft magnetic core with wound coil and a chip capacitor without battery or electric wires, driven wirelessly by the action of electromagnetic induction. The system realized the position accuracy is less than 1 mm within the space of 150 mm from the pickup coil array. Compared with dc magnetic system, the proposed system is applicable for precision motion-capturing under optically isolated space without magnetic shielding because the system is not influenced very much by the earth field noise.

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Magnetics, IEEE Transactions on  (Volume:41 ,  Issue: 10 )