| 摘要 |
PURPOSE:To decrease a mounting volume, by a method wherein a magnetic substance resistance element is located at a magnetic detecting surface side, and a circuit component is placed at the opposite surface side to monolithically unite them by means of a hybrid IC. CONSTITUTION:A magnetic resistance element 7 is situated at a gear (3) side being a magnetic substance detecting surface side of a substrate 6, and a circuit 9A is placed at the opposite surface side. The circuit 9A except a space of a bias magnet 8 can be all used, and thereby the layout of the circuit is simplified, which results in enabling a height D of a circuit component to cover a range of about the height h of the bias magnet. A resistance for regulating a duty ratio of an output is also positioned at the bias magnet (8) side, and this facilitates the regulating work of the duty ratio which is conducted as the gear 3 is turned. |
