Piezoelectric converter

Details Piezoelectric converter Piezoelectric converter

2006-08-01

2006-08-01

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S320000, C310S328000

Reexamination Certificate

active

07084551

ABSTRACT:
A piezoelectric converter comprising a piezoelectric actuator that includes a piezoelectric ceramic layer of thin plate shape being stacked on the surface of a substrate on the side thereof whereon cavities to be filled with a liquid are formed wherein, in order to prevent a significant buckling deformation from occurring in a region of the piezoelectric actuator that corresponds to the cavities of the substrate, the thickness T (mm) of the piezoelectric ceramic layer and maximum width W (mm) of the cavities in the direction of substrate surface are set so as to satisfy the relation of expression (1).in-line-formulae description="In-line Formulae" end="lead"?T≧(19.6W+5.5)×10−3  (1)in-line-formulae description="In-line Formulae" end="tail"?

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