| 摘要 |
The rotation monitor uses at least two Hall sensors, each having a pair of identical Hall generators (12, 13; 14, 15) coupled to voltage/current converters (16, 17; 18, 19) supplying respective signals to an evaluation stage. The mean spacing of the Hall sensors (1, 2) is half the cog gap of the monitored cogwheel. The outputs of the voltage/current converters (16, 17; 18, 19) for the two Hall sensors (1, 2) are combined in phase opposition. Pref. the Hall generators (12, 13; 14, 15) in each Hall sensor (1, 2) lie at 90 degrees to one another.
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