| 摘要 |
PROBLEM TO BE SOLVED: To provide a resonance tag having a high durability in which it is no risk of moisture content being condensed thereon. SOLUTION: The resonance tag is constituted by a resonance circuit 1, in which thin film-like conductors 3 are laminated on both surfaces of dielectric layer 2 constituted by an olefin resin, and an olefin soft resin layer 5 superposed on an outer surface of the resonance circuit 1. This soft resin layer 5 is formed by a multi-stage molding, such as an insert molding and a two-color molding and is heat-fused to the dielectric layer 2, without substantially forming an air layer at a periphery of the thin film-like conductor 3, and the soft resin layer 5 is heat-welded to each other at an outer periphery part of the dielectric layer 2. The cross sectional shape of the resonance tag may be curved, and a reinforcing resin layer 4 may be interposed between the thin film-like conductor 3 and the resin layer 5. The resonance tag is attached to a substance, embedded in underground and is useful for detecting a buried position of the embedded substance, based on resonance with respect to electric waves from a detection device. |
