Title:
地磁気を測定し、利用する応用機器
Document Type and Number:
Japanese Patent JP5017539
Kind Code:
B1
Abstract:
A geomagnetic application device comprising a triaxial magnetic sensor, a measurement point acquiring means, a calibration means for calibrating offset of the magnetic sensor, and an azimuth calculation means, is provided. The geomagnetic application device is characterized in
that the calibration means is provided with an offset calculation measurement point selection means for selecting at least six measurement points of the geomagnetic vectors from among a data set stored in the measurement point storage unit by the measurement point acquiring means and storing the selected measurement points in an offset calculation measurement point storage unit, and
that the offset calculation measurement point selection means select the measurement points from among the data set stored in the measurement point storage unit so as to include at least six points, the component values of which are maximum or minimum in each of the three orthogonal axes.
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Inventors:
Yoshinobu Honzo
Katsuhiko Tsuchida
Eiji Kako
Ryuji Masaki
Katsuhiko Tsuchida
Eiji Kako
Ryuji Masaki
Application Number:
JP2011031533A
Publication Date:
September 05, 2012
Filing Date:
February 17, 2011
Export Citation:
Assignee:
Aichi Micro Intelligent Co., Ltd.
International Classes:
G01C17/38; G01R33/02
Domestic Patent References:
| JP2007271454A | ||||
| JP200647038A | ||||
| JP2005195376A | ||||
| JP2004309227A |
Attorney, Agent or Firm:
Patent Business Corporation Aichi International Patent Office