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Electromotional Device Using PVF2 Multilayer Bimorph

Minoru TODA, Susumu OSAKA

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Summary :

A novel piezoelectric electro-motional device using a PVF2 multilayer bimorph structure is described. This structure delivers a relatively large bending motion at low applied voltages because of the bimorph action and the thickness of the polymer films. Typically, the bending deflection at the unsupported end of a two-layer bimorph cantilever structure 20 mm in length is 1 mm per 10 volts of dc applied potential across the layers. Frequency response is typically 10 - 102 Hz depending upon cantilever length. Performance is relatively insensitive to temperature over the range 35 to 40. A large range of mechanical-electrical tradeoffs in relatively simple structures using inexpensive material makes these devices potentially attractive for a wide range of applications that require low frequencies and mechanical force, for example: for fine motion control, for displays, for light beam control, and for certain types of electrical circuit control.

Publication
IEICE TRANSACTIONS on transactions Vol.E61-E No.7 pp.507-512
Publication Date
1978/07/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Materials

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