Patent ID: 8416972
Filing Date: 2013-04-09
Classification: H01L,H02N,H04R

Abstract:
1. A device for harvesting energy by absorbing vibrations from a surface, said device comprising: a body including a reaction mass and a magnetostrictive actuator, said magnetostrictive actuator comprising: at least one coil surrounding an element of giant magnetostrictive material (GMM); said at least one coil being electrically connected to a power storage system; said magnetostrictive actuator having a foot for coupling said vibrations into said element of giant magnetostrictive material, thereby inducing an electric current in said at least one coil, whereby said device removes energy from said surface; and said magnetostrictive actuator being mounted between said body and a base-plate, said base-plate being attached to said body with a hinge, and said foot being mounted on said base-plate, whereby movement of said foot in a first axis is transmitted to said GMM element in a second axis transverse to said first axis.