Hall Effect sensors are transducers that respond to a magnetic field through varying their output voltage. They mainly consist of a thin piece of rectangular semiconductor like gallium arsenide passing a continuous current in it. They are used in current sensing, speed detection, positioning and proximity switching. They are also used many ignition distribution systems and monitoring of the engine rotations per minute. They produce an on off voltage signal that can vary from maximum to zero and then back to maximum (WMC 1).
Functioning
A hall sensor has three terminals or wires. One terminal is for the ground, the second terminal for ...
