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Piezoelectric composite with tapered beam

  • US 7,880,370 B2
  • Filed: 04/06/2010
  • Issued: 02/01/2011
  • Est. Priority Date: 11/23/2005
  • Status: Expired due to Fees
First Claim
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1. An energy harvesting device, comprising a composite structure including a base spring and a piezoelectric structure, wherein said piezoelectric structure is mounted on said base spring, wherein said base spring has a base spring effective thickness, wherein said piezoelectric structure has a piezoelectric structure effective thickness, wherein said piezoelectric structure effective thickness is greater than said base spring effective thickness.

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