To find a solution for the metal strip deviation problem in actual production

an inductive detecting device

inductive centre sensing system is introduced.The output signal of measurement conversion module of general inductive sensor is analog signal

and the system requires external AC power

which is inconvenient.Starting from the basic principles of the inductive sensor

the system architecture is designed.The design and realization of the hardware interface circuit and MCU program are completed.Experiments show that the system can achieve precision which is prior to ±0.2 mm.