| 摘要 |
PURPOSE:To reduce manhours, by using a flux variation detection type index sensor and by providing recessed and projecting parts across both ends on the outside circumferential surface of a rotor frame. CONSTITUTION:When a rotor frame 16 rotates in the direction of an arrow in the figure, an index sensor 19 outputs a signal from a winding terminal 34 in accordance with the change of recessed and projecting parts of the rotor frame 16 made of a magnetic substance. With the rotation of the rotor frame 16, an output a' is generated at the vicinity of a section A, an output b' at the vicinity of a section B, c' section C, d, section D and e' section E. At the same time, because of the change of the unevenness of the rotor frame 16, wind is generated under a reference plane for mounting a bracket. |
