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Passive RFID sensor systems for crack detection & characterization

Lookup NU author(s): Professor Gui Yun TianORCiD, Aobo Zhao

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Abstract

© 2016 A significant requirement of low-cost sensor systems for defect detection and characterization is to bridge the gap of nondestructive testing & evaluation (NDT&E) and structural health monitoring (SHM). This paper introduces an ultra-high frequency (UHF) passive RFID sensor system for crack detection and potential structural monitoring. The working principles and major research challenges are presented for the new concept of NDT&E sensor systems. One novel approach using 3D antenna and kernel principal component analysis (PCA) is investigated and validated in conjunction with two case studies for evaluation of open and closed cracks. This proposed method can partly alleviate the nonlinearity from wireless channel and demonstrate the feasibility of the in-situ motoring through amplitude and phase of tag's backscattered signals.

Publication metadata

Author(s): Zhang J, Tian GY, Zhao AB

Publication type: Article

Publication status: Published

Journal: NDT & E International

Year: 2017

Volume: 86

Pages: 89-99

Print publication date: 01/03/2017

Online publication date: 15/11/2016

Acceptance date: 08/11/2016

ISSN (print): 0963-8695

ISSN (electronic): 1879-1174

Publisher: Elsevier Ltd

URL: https://doi.org/10.1016/j.ndteint.2016.11.002

DOI: 10.1016/j.ndteint.2016.11.002

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