The working principle of inductive sensors is as follows:

Inductive sensors are composed of three main parts: an oscillator, a switching circuit, and an amplification output circuit.

2. The oscillator generates an alternating magnetic field. As the metal target approaches this field and reaches the induced distance, eddy currents are generated within the metal target, leading to the attenuation of the metal oscillator until it stops oscillating.

The variation of oscillator oscillation and stoppage is processed and converted into a switching signal by the output stage amplification circuit, triggering the driving control device to achieve non-contact detection.