Shaft rotation sensor - provides several oppositely-poled permanent magnets on shaft, direction sensitive Hall effect sensors producing non-zero signals and pulse forming, low pass and signal processing circuits.

摘要

The sensor contains permanent magnets mounted on a rotating shaft and produces one or more signals different from null in the Hall sensor. The sensor signal is digital or analogue. The calculation circuit produces a digital signal and contains one or more input amplifiers, pulse shapers, low pass filters and signal processing devices etc,. USE/ADVANTAGE - Low cost system determines direction of rotation as well as revolution rate.