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Proceedings Paper

Development of a flexible capacitive sensor for concrete structure health monitoring
Author(s): Yu Cheng; Asad Hanif; Zongjin Li
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Paper Abstract

Considering the limitations of the current structure health monitoring techniques, a novel low-cost capacitive transducer (CT) using capacitance signals, which has the potential to provide accurate health assessment and damage prediction for reinforcement concrete structures, is firstly developed. Four major works including the development of the capacitive sensor, the optimization work of CT sensor design, the application of the CT in rebar size/depth/position and rebar corrosion tests using the developed CT are mainly introduced. Results have shown that the developed CT with innovative capacitance measuring method has great accuracy in predicting the rebar size and position inside a large structure, which is the foundation of the reinforcement corrosion detection. It can be concluded that the developed capacitive transducer is applicable in the condition tests of reinforced concrete structures and it paves the way for evaluation of the corrosion degree of the reinforced rebar.

Paper Details

Date Published: 27 March 2018
PDF: 9 pages
Proc. SPIE 10598, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018, 105980N (27 March 2018); doi: 10.1117/12.2306201
Show Author Affiliations
Yu Cheng, Hong Kong Univ. of Science and Technology (Hong Kong, China)
Asad Hanif, Mirpur Univ. of Science and Technology (Pakistan)
Zongjin Li, Univ. of Macau (Macao, China)

Published in SPIE Proceedings Vol. 10598:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018
Hoon Sohn, Editor(s)

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