SYSTEM AND METHODS FOR DETECTING ENVIRONMENTAL CONDITIONS

摘要

Embodiments of the invention are concerned with methods and systems for use in detecting environmental conditions associated with packages or packaging for products, in particular products for ingestion and for the treatment of medical conditions. In one aspect, embodiments provide a system for detecting a condition of such a package comprising a sensor responsive to electromagnetic induction and having response characteristics dependent on said condition. The system comprises an excitation coil magnetically coupled to said sensor; a receiving coil system magnetically coupled to said sensor, the receiving coil system being connectable to a processing system for determining the sensor response, wherein the receiving coil system is arranged so as to control the electromagnetic coupling between at least part of the receiving coil system and said excitation coil.