Coin sorting device based on magnetic field coupling

The utility model discloses a coin sorting device based on magnetic field coupling, which comprises an eddy current type sensing module, a processing module and a display module, the eddy current typesensing module is used for collecting coin feature information and transmitting the coin feature information to the processing module, and the processing module obtains the feature information and processes the feature information to be displayed through the display module. The eddy current type sensing module comprises an excitation signal circuit, a mutual inductance type coil and a signal amplification circuit. The coin sorting device has the beneficial effects that sine signals are generated, power amplification is performed, effective excitation is applied to the inductive coupling sensor, coupling signals are received, amplitude characteristics are extracted, coins are sorted by detecting different sizes of generated vortexes so as to distinguish the coins with different currency values, the sorting efficie