Passive tamper-resistant seal and applications therefor
A ribbon comprises a substrate, and a plurality of radio frequency identification (RFID) seals on the substrate. Different RFID seals detune in response to differing tensile loads.
1. A ribbon comprising:
a substrate; and
a plurality of radio frequency identification (RFID) seals on the substrate, different RFID seals detuning in response to differing tensile loads, wherein each RFID seal detunes in response to a differing tensile load, wherein a plurality of RFID seals comprises an antenna and a tag tuned to said antenna, said tag becoming detuned in response to said differing tensile load, and wherein each antenna comprises a main antenna portion and at least one break-away portion coupled to said main antenna portion, said at least one break-away portion separating from said main antenna portion in response to said differing tensile load.
2. The ribbon of claim 1 , wherein each tag resonates in response to said scanning signal when tuned to said respective antenna and outputs a code unique to said tag.
3. The ribbon of claim 2 , wherein said scanning signal is of a predetermined frequency.
4. The ribbon of claim 1 , wherein said at least one break-away portion is coupled to said main antenna portion by one-time contacts.
5. The ribbon of claim 1 , comprising a plurality of break-away portions at spaced along locations along the antenna.
6. The ribbon of claim 1 , wherein the RFID seals are longitudinally oriented on the substrate.
7. The ribbon of claim 1 , wherein two sets of RFID seals are on the substrate, the first set of RFID seals mirroring the second set of RFID seals.
8. The ribbon of claim 7 , wherein the substrate is a plate.
9. The ribbon of claim 1 , wherein two sets of RFID seals are longitudinally oriented on the substrate.
10. The ribbon of claim 1 , wherein each RFID seal is a passive RFID seal.
11. The ribbon of claim 1 , wherein each RFID seal further comprises a coating on the antenna.
12. The ribbon of claim 1 , wherein at least one RFID seal comprises comprising at least one anti-cloning mechanism.
13. The ribbon of claim 12 , wherein the anti-cloning mechanism is selected from a group consisting of originality signature, password protected memory management and anti-cloning codes.
14. A plurality of ribbons each with in accordance with claim 1 and joined at a common area, wherein each ribbon is offset from an adjacent ribbon.
15. The plurality of ribbons according to claim 14 comprising three ribbons offset from each other by 90°.
16. A cord comprising the ribbon of claim 1 affixed to the cord, the ribbon configured to detect tension on the cord.
17. The cord of claim 16 , further comprising at least one stake affixed to an end of the cord.
18. The cord of claim 17 , wherein the tension is caused by seismic movement.
19. A structure comprising the ribbon of claim 1 affixed to the structure, the ribbon configured to detect heat expansion and/or contraction of the structure.
20. A vehicle comprising the ribbon of claim 1 affixed to the vehicle, the ribbon configured to detect fatigue.
21. Tubing or a pipeline comprising the ribbon of claim 1 affixed to the tubing or pipeline, the ribbon configured to detect fatigue in and/or failure of the tubing pipeline.
22. A railway track segment comprising the ribbon of claim 1 affixed to the track segment, the ribbon configured to detect movement of the railway track segment relative to an adjacent railway track segment.