Tracking characteristics of electromagnetic sensor is introduced

and model of electrified wire magnetic field is described

and relationship between height and horizontal distance of electromagnetic sensor and magnetic field model is analyzed with Matlab.Through analysis on magnetic field model

inductance coil is selected as sensor for magnetic field detection

and tracking characteristics of dual-inductive electromagnetic sensor is deduced and tracking model is established.Layout scheme of dual-inductive electromagnetic sensor is identified according to a large number of experiments

and experimental results indicate that the tracking model can be used for detection of electromagnetic field.