Abstract

Representation of an accurate equivalent circuit model of sensor coil is an important issue, an operational frequency being higher. Generally, the coil is represented by an inductance element connected with a resistance in series and a capacitance in parallel. In use of multi-layered coils at medium wave frequencies, it is however considered that the correction of the model should be needed to make the accurate equivalent circuit model. Having this fact in minds, inductances, resistances, and capacitances of the multi-layered coils were extracted by the electromagnetic field simulator and a new type of equivalent circuit of the multilayered coil was evaluated by comparing the calculated results with the measured ones. And the validity was confirmed in this paper.

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