Sick - one of the world`s leading producers of sensors and sensor solutions for industrial applications. Sick is a technology and market leader in both factory automation and process automation. The sick product range includes inductive proximity sensors.
An inductive proximity sensor comprises an lc oscillating circuit, a signal evaluator, and a switching amplifier.
The coil of this oscillating circuit generates a high-frequency electromagnetic alternating field. This field is emitted at the sensing face of the sensor. If a metallic object [switching trigger] nears the sensing face, eddy currents are generated. The resultant losses draw energy from the oscillating circuit and reduce the oscillations. The signal evaluator behind the lc oscillating circuit converts this information into a clear signal.
High switching frequencies and high continuous currents characterize many sick inductive sensors. They are available as dc2-wire conductors, dc3-wire conductors, dc4-wire conductors, ac/dc2-wire conductors, ac2-wire conductors and namur sensors in accordance with en 50 227.
