CPC G06F 3/046 (2013.01) | 16 Claims |
1. A sensor, comprising:
a plurality of loop coils arranged in multiple areas,
wherein a specific loop coil among the plurality of loop coils includes a first loop portion in a first area serially connected with a second loop portion in a second area different from the first area within the multiple areas,
wherein, in operation, current flows from the first loop portion to the second loop portion.
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