发明名称 |
AZIMUTH MEASURING DEVICE AND AZIMUTH MEASURING METHOD |
摘要 |
<p>An azimuth measuring device capable of performing calibration of a magnetic sensor without applying load to a user. When a point having output amplification values Sx, Sy, Sz after sensitivity correction as an x, y, and z component is arranged on a xyz coordinate system, an offset information calculation section (8) calculates the center coordinates of such a sphere whose surface is located in the vicinity of each point. The x component of the center coordinate of this sphere is calculated as the current offset Cx of the x-axis hall element HEx; the y component of the center coordinate of this sphere is calculated as the current offset Cy of the y-axis hall element HEy; and the z component of the center coordinate of this sphere is calculated as the current offset Cz of the z-axis hall element HEz. Thus, it is possible to perform calibration of the magnetic sensor without applying load to the user.</p> |
申请公布号 |
WO2004003476(A1) |
申请公布日期 |
2004.01.08 |
申请号 |
WO2003JP08293 |
申请日期 |
2003.06.30 |
申请人 |
ASAHI KASEI KABUSHIKI KAISHA;HIKIDA, KOICHI;YAMASHITA, MASAYA |
发明人 |
HIKIDA, KOICHI;YAMASHITA, MASAYA |
分类号 |
G01C17/28;G01C17/38;(IPC1-7):G01C17/38 |
主分类号 |
G01C17/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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