1. A multifunctional device as both strain sensor and energy harvester for structural health monitoring
- Author
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Jean-Marie Dilhac, Tingwen Ruan, Marise Bafleur, Zheng Jun Chew, Meiling Zhu, University of Exeter, Équipe Énergie et Systèmes Embarqués (LAAS-ESE), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), FP7 CHIST-ERA, European Project: 287654,EC:FP7:ICT,FP7-ICT-2011-7,CHIST-ERA II(2011), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), and Université Fédérale Toulouse Midi-Pyrénées
- Subjects
energy harvesting ,Engineering ,strain sensor ,Maximum power principle ,Context (language use) ,02 engineering and technology ,7. Clean energy ,01 natural sciences ,law.invention ,law ,[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics ,multifunctional ,structural health monitoring ,business.industry ,010401 analytical chemistry ,Electrical engineering ,021001 nanoscience & nanotechnology ,Piezoelectricity ,0104 chemical sciences ,Capacitor ,piezoelectric ,Structural health monitoring ,0210 nano-technology ,business ,Energy harvesting ,Wireless sensor network ,Energy (signal processing) - Abstract
International audience; In the context of wireless sensors (WSs) autonomous in energy, this paper presents a single macro-fiber composite (MFC) piezoelectric transducer which is used for the first time as a multifunctional device as both sensor and energy harvester in a time-multiplexing manner. The MFC is used as an energy harvester to charge up a storage capacitor. When there is sufficient energy, the WS is powered up and the MFC is used as a sensor. A circuit was implemented to harvest energy from the MFC and use the MFC as a sensor. Experiment validation shows that the MFC has an accuracy of up to 97 % as sensor and the circuit harvests energy from the MFC at its maximum power point with up to 98 % efficiency.
- Published
- 2016
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