| 摘要 |
PROBLEM TO BE SOLVED: To detect coins in the whole region in a coin lamination direction with almost uniform accuracy.SOLUTION: A coin detection sensor 10A comprises a substrate 12 where planar coils 11 are arranged. The substrate 12 includes a first surface 12a and a second surface 12b in a coin lamination direction. The plurality of planar coils 11 are arranged in parallel so as to align coin detection regions in a state of partially overlapping in the coin lamination direction on the first surface 12a and the second surface 12b of the substrate 12. For example, in this arrangement, among a plurality of planar coil 11a arranged on the first surface 12a of the substrate 12, the center of a planar coils 11b arranged on the second surface 12b of the substrate 12 is positioned in the vicinity of the intermediate position between adjacent planar coils 11a. |
