Polymeric piezoelectric transducer with thermoformed protuberances
US4284921A · kind A · utility
71Cited by
14References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1978 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Nov 15, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/435
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to devices using transducer elements comprising a film of piezoelectric polymer arranged between electrodes. The transducer element in accordance with the present invention is in the form of a thermoformed protuberance. These devices are used for detecting and generating elastic compression waves, for infrared radiation, and for storing electrical energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.