Environmental Exposure Tracking Tags

In this Phase II effort, Cornerstone Research Group, Inc. (CRG) proposes to demonstrate the capability to design and manufacture a wide range of cumulative thermal and humidity exposure sensors. These sensors will range from inexpensive (< $0.10/ea.) visual readout to remotely interrogated sensors for passive monitoring of the conditions inside packages that are never opened until ready for use. The sensors will require no electrical power or electronic memory, and offer lifetimes of twenty years or more. Based on the successful feasibility demonstration of novel cumulative exposure sensing devices in Phase I, CRG proposes to optimize materials formulation and device designs to meet the Phase II program goal. Anticipated benefits include: increased operation readiness, improved supply logistics, and the sensor’s ability to be incorporated readily into existing packaging and information systems. Application of these sensing devices to current ordnance stocks will allow the freshest items to be reserved for the most critical situations. Commercial applications include freshness sensors for law enforcement ammunition and food stores, ranging from frozen foods to fresh meat to produce. CRG’s track record for innovating new materials and processing technologies positions CRG for successful implementation of the sensor technology that meets the Navy's operational needs.