Inductive and Eddy Current Sensors

Inductive sensors and eddy current sensors are devices used to measure displacements, positions, velocities or deformations of metallic objects using electromagnetic principles. Both are characterized by their high reliability in industrial environments and under adverse conditions.

Inductive Sensors

Inductive sensors work by generating a magnetic field using a coil supplied with alternating current. When a metallic object enters this field, it causes a variation in the inductance of the system due to the interaction of the magnetic field with the conductive material. This variation is converted into an electrical signal proportional to the distance between the sensor and the object.

Eddy Current Sensors

Eddy current sensors work by generating an alternating magnetic field near a conductive object. This field induces eddy currents in the material, which in turn generate their own magnetic field. Interactions between these fields modify the impedance of the coil in the sensor, providing information about the distance or displacement of the object.