| 摘要 |
PROBLEM TO BE SOLVED: To provide a direct drive motor to detect a rotational angle of a rotor with high precision though avoiding atmospheric pollution. SOLUTION: As an inner rotor 21 is rotation-driven in synchronization with an outer rotor 16 by a stator 29, if the rotational angle of the inner rotor 21 is detected, the rotational angle of the outer rotor 16 is immediately obtained from it, and drive control of the outer rotor 16 is performed with high precision thereby. COPYRIGHT: (C)2011,JPO&INPIT |
