| 摘要 |
<p>An angular position sensing device (1) comprising Hall Effect sensors (4a, 4b) is disclosed. The sensors (4a, 4b) are mounted in front of at least one rotatable magnet (3). The output voltage of the sensors (4a, 4b) varies with changing rotational position of the magnet (3). The magnet (3) is suitably mounted and the magnetic surface has a varying surface profile such that in the event of rotation of the magnet (3), a uniformly varying air gap is formed between the sensors (4a, 4b) and the magnetic surface, thus creating a unifromly varying magnetic field. The voltage output of the sensors is linear and reflective of the angular position of magnet (3).</p> |
