Inductive proximity switch is a type of switch composed of three parts: oscillator, switch circuit, and amplifier output circuit. The oscillator generates an alternating magnetic field. When the metal target approaches this magnetic field and reaches the sensing distance, eddy currents are generated within the metal target, leading to oscillation attenuation and even stopping. The oscillation and stop changes of the oscillator are processed by the subsequent amplification circuit and converted into switch signals, triggering the driving control device to achieve non-contact detection purposes