High deflection bandwidth product polymeric piezoelectric flexure mode device and method of making same
US4342936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1980 |
| Grant date | Aug 3, 1982 |
| Priority date | — |
| Expiry date | Dec 19, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
Abstract
A piezoelectric flexure mode device comprises: a sheet of polymeric piezoelectric material, poled in a direction parallel with the thickness of the sheet; a relatively thin electrode, being less than about 1% of the total thickness of the device, bonded to one side of the sheet; and a relatively thick electrode, being between about 2% and about 35% of the total thickness of the device, bonded to the other side of the sheet. The second electrode is of a thickness sufficient to substantially maximize a figure of merit, called Deflection Bandwidth Product, representing the deflection of the device times the first resonant frequency of the device, thereby providing a flexure mode device capable of large rapid deflections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.