| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor which adjusts a phase difference of signals output from two magnetosensitive poles by mechanically adjusting a position of a magnetic detection unit without causing a position detection sensor to contact with an outer peripheral surface of a magnet or lower the sensitivity thereof as in conventional motors. <P>SOLUTION: A stepping motor includes: a rotor having a magnet 7; a stator 2 having a first outer side magnetic pole part 2a and a second outer side magnetic pole part 2b; a first coil 3; a second coil 5; and a magnetic sensor 12 having a frist magnetosensitive pole 12a and a second magnetosensitive pole 12b. The magnetic sensor 12 is disposed so that the frist magnetosensitive pole 12a and the second magnetosensitive pole 12b are arranged in a circumferential direction of the magnet 7. Further, the magnetic sensor 12 is formed so that the position thereof is mechanically adjusted in a radial direction of the magnet 7. <P>COPYRIGHT: (C)2012,JPO&INPIT |
