Method for designing ultrasonic transducers with acoustically active integrated electronics
US7439656B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 2004 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Jun 9, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Ultrasonic transducer including a multi-layer transformer arranged between a backing block and piezoelectric layer on each of which at least one matching layer is arranged. The transformer includes a substrate having an electronic circuit, one or more acoustically active layers and an interconnect layer interposed between the piezoelectric layer and the substrate. The properties of the substrate, each acoustically active layer and the interconnect layer are selected and then the acoustic impedance of the transformer at a side of the piezoelectric layer adjacent the transformer is determined. The properties are then varied, e.g., using a computer simulation, until values for these properties are obtained which provide a desired acoustic performance characteristic at the side of the piezoelectric layer adjacent the transformer. The electronic circuit is thus considered in the determination of the acoustic impedance of the transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.