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

Events as Power Source: Wireless Sustainable Corrosion Monitoring

1
,
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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Abstract

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 3.0).

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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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