Provided by: EMW Publishing
Date Added: Sep 2012
In this paper, the authors present a concept, by which Radio Frequency (RF) tags are employed as remotely read dielectric-property sensors to determine qualities of some Construction Material Products (CMPs); e.g., Light Weight Concrete (LWC), mortar specimens and concrete. Using the dependency of the read range of the passive RF IDentification (RFID) sensor system on the electromagnetic properties of CMPs near or in contact with RFID tags, the qualities of CMPs can be determined through their estimated dielectric properties. Theoretical formulation is provided, and numerical simulations are performed for optimal design of passive RFID tag antennas suitable for RFID sensors and for read-range calculations.