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The purpose of this paper is to introduce a new eddy-current testing system for subsurface crack detection based on giant magneto resistive (GMR) sensors. The optimized probes having small dimensions and high sensitivity to low magnetic fields enhances the spatial resolution of an ECT system. Experimental results of different frequencies and different liftoff distance are presented.
This paper presents the concept of the detection of crack in metal using radio frequency identification (RFID) tag antenna based sensor (TABS) in ultra-high frequency (UHF) band. The major purpose of our work is to simulate and explore a feasibility, challenges and principles of crack detection based on RFID grids, which can promise the widespread adoption of a smart skin in the field of structural...
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