Wall-driven oval ring transducer
US4435794A · kind A · utility
12Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1981 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | Jul 6, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/0655
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention is a small light weight underwater transducer that operates at low frequencies. The foregoing is accomplished by embedding piezoelectric material in the wall of an oval shell between the shell's nodal points. When an alternating voltage is applied to the piezoelectric material, the piezoelectric material expands and contracts causing large circumferential strains in the shell of the transducer. The aforementioned strains cause the shell to vibrate and energy to be radiated into the water. This invention may also be used as a receiving type of transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.