3235 交流磁性マーカによる磁界発生実験

抄録

We designed and fabricated cylindrical magnetic ac markers for magnetic motion capture system. The ac marker is 12mm long and 7mm in diameter. The oscillation circuit, the magnetic field generating coil and battery have been arranged on the same substrate, and the marker further considered as the battery drive was made as an experiment. A magnetic field of 3.75×10^<-7> Oe was measured using a high-frequency carrier type thin-film magnetic field sensor combined with a carrier-suppressing circuit. The distance detected between sensors and marker was 303mm.