Process to increase the power of the low frequency electro acoustic transducers and corresponding transducers
US5070486A · kind A · utility
7Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1990 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Dec 7, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/505
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electroacoustic transducer according to the invention comprises a stacking of annular plates (13) made of piezoelectric ceramics alternating with annular electrodes (14) and pressed by an axial prestressing stem (15). The contact faces between each plate and the adjacent ones are made of two flat parts (16a, 16b) whose surface is smaller than the maximum cross section, due to the chamfers (19a, 19b, 20a, 20b) which truncate the edges of each plate. One application is the construction of low frequency sonar transmitters. Referenced elements refer to FIG. 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.