Tamper-Revealing Ceramic-Fiber Seal

摘要

We have carried out proof-of-concept experiments for a seal that will detect tampering and provide a quick, reliable method for authentication. Composed of a protected flexible ceramic-fiber cable cemented to a remendur rod, the seal is designed to be made from commercially available materials; therefore, it will be relatively easy to manufacture. A 1-m-long prototype seal was fabricated and proved to be viable. Experiments showed that it was impossible to duplicate an ultrasonic 'fingerprint' produced by random particles and random placement of fibers in the cement used to connect the fiber cable to the remendur rod.