| 摘要 |
PURPOSE:To obtain a large output voltage with small-sized constitution and reduce a cogging quantity by arranging a rotor gear and a stator gear opposite each otherin the axial direction of a rotating shaft, and forming face gear type tooth parts in the facing surfaces. CONSTITUTION:When the rotating shaft 1 rotates, the rotor gear 12 and a magnet 13 which are coupled with the rotating shaft rotate together. On the other hand, a stator plate 3 and the stator gear 11 and fixed to a bearing 12. At this time, the length of the gap between the magnet 13 and stator plate 3 does not vary, so said gap has constant magnetic resistance. Magnetic flux cross-linking with a coil 6 varies as the rotor gear 12 rotates and a current corresponding to the variation quantity is generated at the coil 6. |
