| 摘要 |
<p>PURPOSE:To detect a position in a three-dimensional space by utilizing an external magnetic field whereby the operation is simplified, and the device is and simplified structurally and miniaturized. CONSTITUTION:Eelectromotive force generated from three magnetic detectors 3, 4 and 5 mutually orthogonally arranged inside a magnetic detector 2 in the case of sensing the external magnetic field is transmitted to voltage amplifiers 7, 8 and 9 inside a sensitivity adjuster 6 and amplified. The gain of the sensitivity adjuster 6 can be adjusted at a controller 15. After amplification, signals are converted by A/D converter circuits 12, 13 and 14 and the position is calculated by the control circuit 15.</p> |
