Piezoelectric composite beam with automatically adjustable...

Details Piezoelectric composite beam with automatically adjustable... Piezoelectric composite beam with automatically adjustable...

2011-03-01

2011-03-01

SanMartin, J. (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S330000, C310S331000

Reexamination Certificate

active

07898157

ABSTRACT:
An energy harvesting system includes a composite structure that has a first spring, a piezoelectric structure, and a proof mass. The piezoelectric structure and the proof mass are mounted on the first spring. The composite structure has a natural frequency of vibration. The natural frequency of vibration of the composite structure is automatically adjustable.

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patent: 2008/0136292 (2008-06-01), Thiesen
patent: 2009/0284102 (2009-11-01), Karakaya et al.

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