Hysteresis

Hysteresis in Inductive Sensors

The difference between the “operate” and “release” points is called hysteresis or differential travel (See shaded area in drawing).

It is factory set at less than 15% of the effective operating distance. Differential travel is needed to keep proximity sensors from “chattering” when subjected to shock and vibration, slow moving targets, or minor disturbances such as electrical noise and temperature drift.

Inductive sensors can be actuated in an axial or lateral approach.