Hall-effect speed sensor

Hall-effect speed sensor and crankshaft position sensor is a Hall effect using the signal generator. Hall signal generator mounted on the distributor, the distributor rotor coaxial with, the encapsulated Hall made ​​the whole chip and a permanent magnet fixed to the distributor Engine Coolant Temperature Sensor plate. Trigger several notches on the impeller and the same number of engine cylinders. When the trigger on the impeller blades into between the permanent magnet and the Hall element, Hall trigger blade magnetic field is bypassed, then no Hall voltage, the sensor has no output signal; when the trigger part into the gap on the impeller permanent magnet and between the Hall element, the magnetic field lines into the Hall element, the Hall voltage increases, the sensor output voltage signal