| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric motor comprising a stator and rotors aligned at predetermined spaces from the stator that can facilitate accuracy control and change the magnetic flux amount, and is not readily affected by product variation. <P>SOLUTION: A rotor 41 arranged on the inward or outward side of a stator 40 in its radius direction comprises a fixed rotor 42 with a constant position along the rotation axis of the rotor 41 and a movable rotor 43 that can move in the direction of the rotation axis to approach or separate from the fixed rotor 42. <P>COPYRIGHT: (C)2013,JPO&INPIT |
