MoTeC Pty Ltd Crank, Cam and Speed Sensors These sensors are used for measuring ... rotational position and speeds, they are most ... commonly used to measure crankshafts, camshafts, and wheel speeds. The sensors come in ... of wires connecting to them, with 2 pin sensors being magnetic, and 3 pin sensors ... being hall. Hall Sensors. Hall Sensors contain a semiconductor Hall effect IC ... as the vane passes through the sensor gap or a tooth passes the sensor tip. ... of the tooth passes the centre of the sensor. The vane or tooth material must be ... steel. There are styles of hall sensor available that can be used with a tooth ... wheel for crank angle or wheel speed sensor, or types that use a vaned rotor passing ... through a hall sensor gap (51121). Magnetic sensors. ...