A Novel Planar Differential Koch Fractal Eddy Current Probe with Parallel Wound Topological Structure

<div>Topological transformation of the two kinds of connection of two exciting coils: (a) series-wound topological structure; (b) parallel-wound topological structure.</div>

Journal of Sensors

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Figure 2: A Novel Planar Differential Koch Fractal Eddy Current Probe with Parallel Wound Topological Structure 