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Vol. 94, Issue 7, July 2008, pp.103-115

 

 

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Wearable Battery-free Wireless 2-channel EEG Systems Powered by Energy Scavengers

 

*Mieke VAN BAVEL, **Vladimir LEONOV, **Refet Firat YAZICIOGLU,

**Tom TORFS, **Chris VAN HOOF, ***Niels E. POSTHUMA and

****Ruud J. M. VULLERS

*IMEC, Business Development Department, Kapeldreef 75, 3001 Leuven, Belgium

Tel.: +32-16-28 80 10, E-mail: vanbavel@imec.be, www.imec.be

**IMEC, Integrated Systems Department, Kapeldreef 75, 3001 Leuven, Belgium

***IMEC, Solar and Organic Technologies Department, Kapeldreef 75, 3001 Leuven, Belgium

****Stichting IMEC Nederland/Holst Centre, Wireless Autonomous Transducers Solutions Department, High Tech Campus 31, 5656 AE Eindhoven, The Netherlands

 

 

Received: 23 June 2008   /Accepted: 21 July 2008   /Published: 31 July 2008

 

Abstract: Thermoelectric generators worn on a personís body have demonstrated their capability to power a variety of wireless sensor nodes that are to improve his/her health or comfort. In this article, the design, fabrication and performance of two prototypes of a battery-free wireless 2-channel electroencephalography (EEG) system are presented. The first system is powered solely by a thermoelectric generator that produces 2-2.5mW of power and is worn as a headband. The second system resembles a diadem or headphones and uses a hybrid power supply that combines a thermoelectric generator and photovoltaic cells in one device. This portable EEG headset considerably improves the comfort of patients in clinical as well as in non-clinical environments and opens perspectives for a new range of non-clinical applications.

 

Keywords: Thermoelectric generator, Wireless sensor node, Wireless electroencephalography, Photovoltaic cell

 

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