Electroacoustic piezoelectric transducers
US4626729A · kind A · utility
17Cited by
6References
2Claims
0Family size
Inventors
Key dates
| Filing date | Apr 30, 1985 |
| Grant date | Dec 2, 1986 |
| Priority date | — |
| Expiry date | Apr 30, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R31/003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to an electroacoustic piezoelectric transducer comprising a mechanically stretched vibrating membrane composed of a polymer sheet (10) jointly interposed between two metallic electrodes (9 and 11), one of them (11) being constituted by metallization of one of the faces of the polymer sheet (10). The other electrode (9) is constituted by an autonomous metallic sheet offering a high resistance to mechanical tension, adhering intimately against the other face of the polymer sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.