Performance of a bending mode energy harvester using Fe-Ga alloy (Galfenol)

Robert A. Haynes; Jin-Hyeong Yoo; Alison B. Flatau

doi:10.1117/12.2016424

28 May 2013 Performance of a bending mode energy harvester using Fe-Ga alloy (Galfenol)

Robert A. Haynes, Jin-Hyeong Yoo, Alison B. Flatau

Proceedings Volume 8728, Energy Harvesting and Storage: Materials, Devices, and Applications IV; 87280U (2013) https://doi.org/10.1117/12.2016424
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

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.

Citation Download Citation

Robert A. Haynes, Jin-Hyeong Yoo, and Alison B. Flatau "Performance of a bending mode energy harvester using Fe-Ga alloy (Galfenol)", Proc. SPIE 8728, Energy Harvesting and Storage: Materials, Devices, and Applications IV, 87280U (28 May 2013); https://doi.org/10.1117/12.2016424

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