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Proceedings Paper

Performance of a bending mode energy harvester using Fe-Ga alloy (Galfenol)
Author(s): Robert A. Haynes; Jin-Hyeong Yoo; Alison B. Flatau
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Paper Abstract

An energy harvester is proposed consisting of a unimorph where the active layer is a magnetostrictive Iron-Gallium alloy. A theory for predicting the open voltage of the energy harvester in a bending-mode configuration is derived. A constrained optimization is performed using the open voltage as the objective function to identify key geometric and physical parameters that produce the highest root-mean-square voltage. Conclusions about the sensitivity of the voltage to variations in the parameters are also presented. The useful power is calculated, and the effect of changing the pickup-coil configuration is explored.

Paper Details

Date Published: 28 May 2013
PDF: 8 pages
Proc. SPIE 8728, Energy Harvesting and Storage: Materials, Devices, and Applications IV, 87280U (28 May 2013); doi: 10.1117/12.2016424
Show Author Affiliations
Robert A. Haynes, U.S. Army Research Lab. (United States)
Jin-Hyeong Yoo, U.S. Army Research Lab. (United States)
Alison B. Flatau, Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 8728:
Energy Harvesting and Storage: Materials, Devices, and Applications IV
Nibir K. Dhar; Palani Balaya; Achyut K. Dutta, Editor(s)

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