OT10.264 - A Hybrid Piezoelectric - Electrostatic Energy Harvester for Wearable Biosensors
- Event
- EUROSENSORS XXXVI
2024-09-01 - 2024-09-04
Debrecen (Hungary) - Band
- Lectures
- Chapter
- OT10 - System Integration, Powering and Energy Harvesting
- Author(s)
- S. D. Psoma, I. Sobianin - The Open University, Milton Keynes (United Kingdom), A. Tourlidakis - University of Western Macedonia, Kozani (Greece)
- Pages
- 217 - 218
- DOI
- 10.5162/EUROSENSORSXXXVI/OT10.264
- ISBN
- 978-3-910600-03-4
- Price
- free
Abstract
Biosensors play a crucial role in modern healthcare, providing continuous monitoring of various physi-ological parameters. However, the reliance on batteries that require replacement introduces interrup-tions in data acquisition process and for this reason energy harvesting methods that convert human body energy into electricity have attracted considerable research interest. In this study, a novel hybrid energy harvester that combines piezoelectric and reverse electrowetting on dielectric (REWOD) tech-niques is investigated. The key working principle revolved around the electrical double layer present in the REWOD component and coupling it with a piezoelectric generator via an electret. By harnessing biomechanical vibrations with a piezoelectric material and the REWOD unit, the overall power output of the biosensor was enhanced. The proposed design was evaluated through numerical simulations and a series of experimental tests. The findings contribute to the advancement of self-powered bio-sensors, enabling seamless and continuous data acquisition without relying on external batteries.