| 摘要 |
<p>The transducer comprises a stator (2) formed of two stator parts (16,26) and three cores (18,19,20). These link three respective magnetic poles (28,29,30) with the second stator part serving to form the magnetic paths of the stator. The coils (22-24) supply the transducer to rotate two rotors (4,6). A coil (23) is connected to a detection device (72) sensing the rotation of one or the other of the rotors (4,6), and in particular sensing the zero-crossing of the induced voltage in the coil (23). This serves as a trigger to control the application of supply current to the two other coils in order to drive the rotors. Rotation may be rapid or continuous, and may be in either direction.</p> |
