| 摘要 |
A rotary position sensor having redundant sensing including a base (20) upon which a plurality of radially extending magnetic sensing elements (22) are mounted to form two sets (74, 76) of sensors. Interleaved with the sensing elements (22) are a plurality of uniformly spaced magnetic concentrators (30). The sensor assembly (18) is placed in a uniform magnetic field created, for example, by a flat plate magnet (432) mounted adjacent the sensor assembly, and rotatable relative to it. The relative rotary position of the sensor assembly to the magnetic field is determined by comparing the relative values of the sensor elements (22) in the array to each other. Also, failure of the sensor assembly is determined by comparing the rotary position calculated for the first set 74 to the rotary position calculated for the second set 76. <IMAGE> |
