Multi-layer acoustic transducer for high frequency ultrasound
US4749900A · kind A · utility
23Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1986 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Nov 17, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a multi-layered piezoelectric acoustic transducer for generating layers of the same piezoelectric material are provided such tool alternate layers have different crystallographic orientations and different piezoelectric coupling coefficients. The layers may be provided so that alternate layers have crystallographic orientations which provide maximum electro-acoustic coupling and layers which provide minimum electro-acoustic coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.