We are in the field of transducers, i.e., systems capable of returning a signal proportional to a position, linear or angular (encoders), or to the deviation from a reference position (inertial sensors). Different types of encoders depend on the principle of operation, which can be optical, magnetic, inductive, or a combination, as in the case of the innovative GMI (Giant Magneto Impedance) encoders. The choice of technology depends on the type of application. Even among inertial sensors, accelerometers, and gyroscopes, different technologies and product types depend on the specific application needs, such as precision guidance, stabilization, navigation, and orientation.