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A Broadband Vibrational Energy Harvester
|Title||A Broadband Vibrational Energy Harvester|
|Publication Type||Journal Article|
|Year of Publication||2012|
|Authors||Van Blarigan, L, Danzl, P, Moehlis, J|
|Journal||Applied Physics Letters|
We propose a design for an energy harvester which has the potential to harvest vibrational energy over a broad range of ambient frequencies. The device uses two flexible ceramic piezoelectric elements arranged in a buckled configuration in the absence of vibrations. Experimental data show that this design allows enhanced harvesting of energy relative to a comparable cantilever design, both for periodic and stochastic vibrations. Moreover, the data suggest that this harvester has its peak energy generation when it responds with chaotic vibrations.