Title:
磁気の環境を考慮したコンパスセンサの較正方法,装置および媒体と、これを用いた方位角測定方法、装置および媒体
Document Type and Number:
Japanese Patent JP5084419
Kind Code:
B2
Abstract:
A method of calibrating a compass sensor in consideration of a magnetic environment is provided. The method includes (a) acquiring magnetic force data by rotating a compass sensor 360 degrees, the compass sensor including a biaxial magnetometer, (b) fitting the acquired magnetic force data to an ellipse function, (c) transforming the acquired magnetic force data and the ellipse function into a circle which is centered on an origin, and (d) calculating a distortion factor based on an inclination of a major axis of the ellipse function or the acquired magnetic force data to a horizontal axis, the distortion factor indicating the degree to which a magnetic field is distorted.
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Inventors:
Vladimir Skvortsov
Kata tin yuan
Lee
Kata tin yuan
Lee
Application Number:
JP2007243812A
Publication Date:
November 28, 2012
Filing Date:
September 20, 2007
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
G01C17/38; G01R35/00
Domestic Patent References:
| JP2004309227A |
Foreign References:
| US4414753 | ||||
| US5828984 | ||||
| US5151872 | ||||
| US4870602 | ||||
| US4698912 | ||||
| US5349529 |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito