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Design of Piezoelectric Polymer Motional Devices with Various Structures

Minoru TODA

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Summary :

Design theory for piezoelectric polymer membrane motional devices is presented. Three types of structures are considered: 1) multilayer structures with a central non-piezoelectric layer, 2) multilayer structures using layers with various thickness in which the electric field is expressed by a approximation of linear spatial dependence, and 3) single layer structures with interdigitated electrodes. The first and second structures feature a reduction in the number of layers with little reduction in motional performance. These approaches are advantageous for structural simplification. The third structure provides a 35 times larger bending displacement than that of the original double layer bimorph using the same layer thickness.

Publication
IEICE TRANSACTIONS on transactions Vol.E61-E No.7 pp.513-518
Publication Date
1978/07/25
Publicized
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DOI
Type of Manuscript
PAPER
Category
Materials

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