ABSTRACT
What is a magnetic sensor? It is a transducer that converts a magnetic eld into an electrical signal.
A magnetic sensor is also required whenever a nonmagnetic signal is detected by means of an intermediary signal detection into the magnetic signal domain in a tandem transducer, for example, the detection of a current through its magnetic eld or the mechanical displacement of a magnet. Therefore, two groups of direct and indirect magnetic sensors are distinguishable.
