| 摘要 |
<p>Two large and small tubular yokes (7, 8) are coaxially superposed on one another. They are coupled by means of an annular yoke (9) at one end, and the other end is open. A solenoid coil (13) is disposed on the coupled end side. Permanent magnets (15) are annularly arranged along the inner circumferential surface of the outer tubular yoke (7) on the open end side and magnetized in multiple poles in the circumferential direction to form a first magnetic circuit. A second magnetic circuit of the same structure is so disposed as to face to the first one, and their open end sides are coupled by means of a yoke coupling member (21) to make it an armature. Inside the permanent magnets (15, 16), circumferential inductors (17, 18) having magnetoresistance periodically varying in the radial direction are arranged in the circumferential direction. They are born on a rotary shaft (20) to make it a rotator, thus producing a two-phase motor.</p> |
