Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/3588
Title: Array of chipless RFID sensor tag for wireless detection of crack on large metallic surface
Authors: Suneel Kumar, Chitturi
Patre, Situ Rani
Keywords: array of RFID tags
crack sensor
effective length
EM transduction
series array
Issue Date: Oct-2021
Publisher: IEEE
Citation: 11th IEEE international Conference on RFID Technology and Applications (IEEE RFID-TA 2021), Delhi, India, 6-8 October 2021
Abstract: In this paper, two array configurations of chipless RFID sensor tags are proposed for the detection of crack on a large metallic surface. A single sensor tag contains compass-shaped and a pair of L-shaped resonators. The metallic object under observation is identified by resonant frequencies of L-shaped resonators and crack on metallic object is observed by shift in resonant frequency of compassshaped resonator. The unit cell tag provides read range of 120 cm and sensitivity of around 75 MHz/mm for 6 cm wide square-shaped surface. However, its performance degrades for larger surface. Therefore, a 3×3 array of sensor tag is proposed for larger surface area. The 3×3 array configuration can detect crack but can’t identify crack location due to the identical elements. To resolve the issue an idea of series array having five rectangular resonators with non-identical dimensions hence multiple resonant frequencies is presented. It helps to identify presence and position of crack on relatively large metallic surface.
URI: http://hdl.handle.net/2080/3588
Appears in Collections:Conference Papers

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