Patent ID: 6356201
Filing Date: 2002-03-12
Classification: B65G

Abstract:
A system for monitoring a cover layer of a composite structure for wear with said cover layer having an outer surface and being subjected to said wear during operation of said composite structure, the system comprising:a transponder embedded in said composite structure; a transmitter/receiver device for continuously generating an electromagnetic field and said transmitter/receiver device being arranged spatially fixed outside of said composite structure; said transponder being disposed in a receiving region of said transmitter/receiver device so that the transponder can be supplied with energy by said electromagnetic field and can transmit data to said transmitter/receiver device when said transponder is supplied with energy; a ferromagnetic layer having a high permeability and being embedded in said cover layer between said transponder and said outer surface of said cover layer; and, said ferromagnetic layer being disposed to shield said transponder in said receiving region of said transmitter/receiver device so that said transmitter/receiver device receives no data from said transponder.