Patent ID: 8907506

Claim:
A multimodal energy harvester comprising: (a) an inductive mode comprising: a cylindrical tube with opposing ends, a rod disposed lengthwise within the tube, a first permanent magnet with a first polarity disposed at one end of the cylindrical tube and an second permanent magnet with a second polarity opposite the first polarity disposed at the opposing end of the cylindrical tube, a central, annular oscillatory magnet disposed within the tube, between the first and second permanent magnets, and around the rod; and a primary coil disposed around an exterior of the cylindrical tube and surrounding a portion of the central magnet, such that during use relative movement between the oscillatory magnet and the primary coil induces an electrical current in the primary coil; and (b) a magnetostrictive mode comprising: at least one piezoelectric cymbal transducer disposed on one end of the cylindrical tube and comprising a magnetostrictive material surrounded by a secondary coil, such that during use movement of the magnetostrictive material induces voltage in the secondary coil.