| 摘要 |
<p>A rotary position detector is provided for detecting the relative position between two relatively rotatable members, the first member comprising first and second magnetic field generators and the second member comprising first and second sensors for respectively sensing the magnetic fields generated by the first and second magnetic field generators. The magnetic field generators are arranged to generate magnetic fields which spatially vary in a cyclic manner with different angular frequencies. The magnetic field generator which generates the magnetic field with the lower angular frequency is arranged so that it does not generate harmonic components which are around the angular frequency of the second magnetic field generator. This reduces the effect of distortion when there is a misalignment between the magnetic field generators and the sensors.</p> |
