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Coupling supercapacitors and aeroacoustic energy harvesting for autonomous wireless sensing in aeronautics applications

Monthéard, Romain and Bafleur, Marise and Boitier, Vincent and Dollat, Xavier and Nolhier, Nicolas and Piot, Estelle and Airiau, Christophe and Dilhac, Jean-Marie Coupling supercapacitors and aeroacoustic energy harvesting for autonomous wireless sensing in aeronautics applications. (2016) Energy Harvesting and Systems, 3 (4). 1-12. ISSN 2329-8774

(Document in English)

PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader

Official URL: http://dx.doi.org/10.1515/ehs-2016-0003


This paper reports for the first time the experimental demonstration of a wireless sensor node only powered by an aeroacoustic energy-harvesting device, meant to be installed on an aircraft outside skin. Aeroacoustic noise is generated on purpose to serve as a means of converting mechanical energy from high velocity airflow into electrical energy. Results related to the physical characterization of the energy conversion process are presented. The proposed aeroacoustic transducer prototype, consisting in a rectangular cavity fitted with a piezoelectric membrane, is shown to deliver up to 2 mW AC power under Mach 0.5 airflow. Optimized power management electronics has been designed to interface with the transducer, including a self-powered Synchronized Switch Harvesting on Inductor (SSHI) interface circuit and an efficient buckboost DC/DC converter. The design of micropower auxiliary circuits adds functionality while preserving high efficiency. This circuit stores energy in supercapacitors and is able to deliver a net output DC power close to 1 mW. A fully autonomous system has been implemented and tested, successfully demonstrating aeroacoustic power generation by supplying a battery-free wireless datalogger in conditionsrepresentative of an actual flight.

Item Type:Article
Additional Information:Thanks to De Gruyter editor. The original PDF of the article can be found at https://www.degruyter.com/view/j/ehs.2016.3.issue-4/ehs-2016-0003/ehs-2016-0003.xml
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Laboratory name:
Deposited On:26 Sep 2017 10:52

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