Coupled coil sensor for detecting surface corrosion on steel reinforcement

Author

Bhadra, S. ; Bridges, G.E. ; Thomson, D.J.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada

fYear

2010

Firstpage

1

Lastpage

4

Abstract

An embedded coupled coil sensor able to monitor the corrosion potential of reinforcement steel in concrete is presented. The sensor is based on coil resonator whose resonant frequency changes with an applied voltage. The sensor state can be monitored externally by a coupled coil. An accelerated corrosion test shows that it can provide useful information about the corrosion state and the level of chloride ingress into the concrete. The wireless sensor is passive and simple in design, making it an inexpensive, batteryless option for remote long-term monitoring of the corrosion state of reinforcing steel.

Keywords

coils; computerised monitoring; condition monitoring; corrosion; reinforced concrete; steel; wireless sensor networks; accelerated corrosion test; coil resonator; concrete; coupled coil sensor; remote long-term monitoring; resonant frequency; steel reinforcement; surface corrosion detection; wireless sensor; Coils; Concrete; Corrosion; Electric potential; Monitoring; Resonant frequency; Steel;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference (ANTEM-AMEREM), 2010 14th International Symposium on

Conference_Location

Ottawa, ON

Print_ISBN

978-1-4244-5049-7

Electronic_ISBN

978-1-4244-5050-3

Type

conf

DOI

10.1109/ANTEM.2010.5552503

Filename

5552503