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Sensors 2013, 13(12), 17414-17433; doi:10.3390/s131217414

Events as Power Source: Wireless Sustainable Corrosion Monitoring

2,3,* , 1,*  and 1
1 School of Information Science and Technology, Beijing Forestry University, 35 Tsinghua East Rd., Beijing 100083, China 2 Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, 25 Huaihe Rd., Harbin 150090, China 3 School of Civil Engineering, Harbin Institute of Technology, 25 Huaihe Rd., Harbin 150090, China
* Authors to whom correspondence should be addressed.
Received: 30 September 2013 / Revised: 6 November 2013 / Accepted: 19 November 2013 / Published: 17 December 2013
(This article belongs to the Section Physical Sensors)
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This study presents and implements a corrosion-monitoring wireless sensor platform, EPS (Events as Power Source), which monitors the corrosion events in reinforced concrete (RC) structures, while being powered by the micro-energy released from the corrosion process. In EPS, the proposed corrosion-sensing device serves both as the signal source for identifying corrosion and as the power source for driving the sensor mote, because the corrosion process (event) releases electric energy; this is a novel idea proposed by this study. For accumulating the micro-corrosion energy, we integrate EPS with a COTS (Commercial Off-The-Shelf) energy-harvesting chip that recharges a supercapacitor. In particular, this study designs automatic energy management and adaptive transmitted power control polices to efficiently use the constrained accumulated energy. Finally, a set of preliminary experiments based on concrete pore solution are conducted to evaluate the feasibility and the efficacy of EPS.
Keywords: wireless sensor; corrosion monitoring; energy harvesting wireless sensor; corrosion monitoring; energy harvesting
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Sun, G.; Qiao, G.; Zhao, L.; Chen, Z. Events as Power Source: Wireless Sustainable Corrosion Monitoring. Sensors 2013, 13, 17414-17433.

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