University of Limerick

Valeria Nico

Jeff Punch

A vibrational energy harvester () comprises a first mass () comprising a first internal cavity () and a second mass () disposed within and configured to move within the first internal cavity. Movement of the second mass relative to the first mass induces an electrical current in one of the first mass and the second mass. The vibrational energy harvester also comprises a housing () comprising a second internal cavity (). The first mass is disposed within and configured to move within the second internal cavity. An adjustment mechanism () is also provided, configured to adjust a size of the second internal cavity.

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Clancy's Strand, Ireland

Valeria Nico