| 摘要 |
<p>A stepping motor capable of increasing an accuracy of a step angle is provided, in which a magnet rotor (3) having a multiplicity of magnetic poles is provided in a peripheral surface, two pairs of yokes (11, 12, 21, 22) having a plurality of pole tooth portions (15, 16, 25, 26) opposing to the peripheral surface of the magnet rotor (3) are laminated and disposed and a first and second coils (5, 6) are provided between the respective yokes (11, 12, 21, 22) constituting the pairs to each other so as to constitute the stepping motor. In the structure, the yokes (11, 12, 21, 22) are made of the ferro-nickel (Fe-Ni) alloy. <IMAGE></p> |
