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Method to generate electrical current using a plurality of masses attached to piezoceramic supports

  • US 6,938,311 B2
  • Filed: 11/19/2003
  • Issued: 09/06/2005
  • Est. Priority Date: 04/17/2002
  • Status: Expired due to Fees
First Claim
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1. A method for generating electrical current, comprising:

  • creating a plurality of unitary masses each connected to one of a plurality of piezoceramic mass supports;

    electrically joining the mass supports to a sheath;

    removing material from the unitary masses to operably limit a mass vibration deflection;

    attaching the sheath to a vibrating body;

    pre-tuning the unitary masses to match at least one natural frequency mode of the vibrating body; and

    generating the electrical current from vibration of the masses and the piezoceramic mass supports induced by the vibrating body.

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