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Lookup NU author(s): Professor Gui Yun TianORCiD
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High frequency RFID sensors are attractive in diverse applications where sensor performance is required at a low cost and dimension restriction. An approach adapting commercial passive 13.56 MHz RFID tags has been developed for sensing corrosion stage. This investigation includes balance of sensing and positioning of RFID sensors for corrosion detection by analysing real and imaginary parts of the complex impedance. With passive HF RFID sensors, real part and imaginary part of complex impedance have been extracted from the reader coil with VNA (vector network analyser) and delivering a unique capability for corrosion sensing with different atmospheric exposure time steel samples (1 month, 6 months, 10 months and 12 months). With different positioning (5-25 mm), features extraction based on the complex impedance with PCA (principal component analysis) has been designed for position-independent corrosion evaluation. (C) 2016 Elsevier Ltd. All rights reserved.
Author(s): Zhang H, Yang RZ, He YZ, Tian GY, Xu LX, Wu RK
Publication type: Article
Publication status: Published
Print publication date: 01/10/2016
Online publication date: 22/06/2016
Acceptance date: 21/06/2016
ISSN (print): 0263-2241
ISSN (electronic): 1873-412X
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