Moeller - Inductive proximity switches LSI - The inductive proximity switch operates on the principle of the attenuated LC oscillator: When metal enters the response range of the proximity switch, power is withdrawn from the system. The metal part causes an energy loss, which is caused by the formation of eddy currents. The eddy current losses are related to the size and nature of the metal part.

The inductive proximity switch operates on the principle of the attenuated LC oscillator: When metal enters the response range of the proximity switch, power is withdrawn from the system. The metal part causes an energy loss, which is caused by the formation of eddy currents. The eddy current losses are related to the size and nature of the metal part.

The change in the oscillation amplitude of the oscillator results in a current change, which is evaluated in the downstream electronics and is converted into a defined switching signal. A steady-state signal is available at the output of the unit, for the duration of the attenuation.

Position 1 Oscillator

Position 2 Rectifier

Position 3 Amplifier

Position 4 Output

Position 5 Power supply