| 摘要 |
PROBLEM TO BE SOLVED: To provide a geomagnetic sensor capable of computing an accurate azimuth even under an inclined condition. SOLUTION: This geomagnetic sensor concerned in the present invention includes a geomagnetism measuring part for outputting a prescribed voltage value in response to a geomagnetism, an acceleration sensor for measuring a pitching angle and a rolling angle indicating a degree of inclination, using a horizontal direction as a reference, and a control part for normalizing the voltage value output from the geomagnetism measuring part, at a prescribed range of value, using the pitching angle and the rolling angle measured by the acceleration sensor, after compensated, and for computing the azimuth. COPYRIGHT: (C)2007,JPO&INPIT
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