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Proceedings Paper

Design of high-efficiency vibration energy harvesters and experimental functional tests for improving bandwidth and tunability
Author(s): A. Somà; G. De Pasquale
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Paper Abstract

The reduction of power consumption of sensors allows the local power supply or wireless sensor networks. This paper introduces the results of design and experiments on devices for harvesting energy from vibrations of machines. The main contribution of this research is the empirical evaluation of different technical solutions able to improve harvester performances and sensing system duty cycle. Satisfactory results have been achieved in lowering of resonance by levitating suspensions and in increasing of Q-factor by studying the air flows. Output power values of 10mW (5.7Hz, 1.4g) and 115mW (3.2Hz, 0.2g) were obtained for piezoelectric and inductive harvesters respectively.

Paper Details

Date Published: 17 May 2013
PDF: 10 pages
Proc. SPIE 8763, Smart Sensors, Actuators, and MEMS VI, 87630U (17 May 2013); doi: 10.1117/12.2016774
Show Author Affiliations
A. Somà, Politecnico di Torino (Italy)
G. De Pasquale, Politecnico di Torino (Italy)

Published in SPIE Proceedings Vol. 8763:
Smart Sensors, Actuators, and MEMS VI
Ulrich Schmid; José Luis Sánchez de Rojas Aldavero; Monika Leester-Schaedel, Editor(s)

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