Multi-driver piezoelectric transducers with single counter-masses, and sonar antennas made therefrom
US4100527A · kind A · utility
8Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1976 |
| Grant date | Jul 11, 1978 |
| Priority date | — |
| Expiry date | Feb 24, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/0618
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A piezoelectric transducer adapted to be immersed in water at great depths, and suitable for applications as a sonar antenna, comprising a cylindrical envelope, a number of piezoelectric drivers disposed within the envelope and constituted by at least one stack of elements alternating with electrodes, at least one pre-stressing rod for interconnecting and compressing the stack, and a common intermediate member to which the drivers are secured by the rod, the member also acting as a counter-mass for the drivers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.