| 摘要 |
<p>[Object] To provide a geomagnetic sensing device including correcting means capable of correcting an offset error generated after calibration. [Solution] A controller 10 includes a calibration unit 10a, an offset error correcting unit 10b, an operation unit 10c, and the like. The calibration unit 10a obtains a reference point Og of an output of a magnetic sensor, and performs offset correction. The offset error correcting unit 10b is capable of performing operation processing for both the correction of a major offset error and the correction of a minor offset error by using a radius R (the magnitude of a geomagnetic vector) of a virtual circle or a virtual sphere (see Figs. 4 and 5 ), appropriately and easily correcting the offset error with a small amount of operation, and reducing the burden to the controller 10.</p> |
