Motion capture system of magnetic markers using three-axial magnetic field sensor

Author

Yabukami, S. ; Kikuchi, H. ; Yamaguchi, M. ; Arai, K.I. ; Takahashi, K. ; Itagaki, A. ; Wako, N.

Author_Institution

Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3646

Lastpage

3648

Abstract

We have developed a magnetic motion capture system consisting of up to two magnetic markers (Nd-Fe-B magnet) and four three-axial sensors. The position and orientation of the magnetic markers (dipole) are detected by measuring the magnetic field of markers. Position accuracy of one marker is about 3 mm when a marker is located 150 mm from a sensor, position accuracy of two markers is about 20 mm when the markers are located 150 mm from sensors. The most common error source is crosstalk between the cores of three-axial sensors

Keywords

crosstalk; fluxgate magnetometers; inverse problems; magnetic sensors; permanent magnets; position measurement; Nd-Fe-B; PM markers; error source; fluxgate sensor; inverse problem; magnetic dipole; magnetic markers; magnetic motion capture system; position accuracy; sensor cores crosstalk; three-axial magnetic field sensor; Gas detectors; Geophysical measurements; Magnetic cores; Magnetic field measurement; Magnetic sensors; Optical receivers; Position measurement; Sensor systems; Vehicle detection; Wiring;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908928

Filename

908928