Abstract
This paper presents the tracking characteristics of electromagnetic sensor. To the model of live wire magnetic field of the formula derivation, and analysis of height and horizontal distance of the electromagnetic sensor and magnetic field. Deduced from magnetic field model that the tracking characteristics of the dual-inductive electromagnetic sensor, to build a tracking model. According to the analysis of a large number of experimental data, experimental results have indicated that the tracking model was approximately linearly related to the horizontal distance.
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