1. "Genuine" inductive pressure sensors operate in accordance with the principle of inductive position measurement whereby the core of the coil is connected to a diaphragm whose deflection it measures (Figure I 6).
2. Pointer instrument based on a normal pressure gauge whereby the movement of the bourdon tube is picked up inductively. An integrated amplifier delivers an impressed direct current as an output signal.
Figure I 6: Operating principle associated with inductive pressure measurement