Sheet-like piezoelectric element
US4638206A · kind A · utility
30Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1985 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Jun 14, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/204
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Sheet-like piezoelectric element in which a plurality of slits are formed between the comb-shaped electrodes alternately projected in a zigzag shape from a pair of terminals arranged oppositely, a piezoelectric layer of composite piezoelectric material is filled into the slits, a DC voltage is applied between the terminals to polarize the adjacent layers in reverse directions to each other, and the electrodes have a thickness corresponding to that of the piezoelectric layer. The element may be used for an electro-mechanical transducer or a thermal-electric transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.