SUMMARY
Professor Hopkins and colleagues have developed a micromechanical displacement-based logic circuit system that can detect changes in its environment over an extended period of time without external power. The system is small enough to be indiscernible when attached to an object and can be tuned to respond to changes in temperature, pressure or both. The system can be used in a variety of applications including food and product identification, determining if an object has been moved or passed through a specific location, or to detect tampering of a sensor-tagged object.
PATENT STATUS
United States Of America Issued Patent 10,855,259 12/1/2020