Method of forming a resonance transducer
US6772490B2 · kind B2 · utility
151Cited by
13References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Jan 11, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4908
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of forming a resonance transducer comprises providing a piezoelectric body having a first acoustic impedance and a propagation medium having a second acoustic impedance. A matching layer is coupled between the piezoelectric body and the propagation medium. The body vibrating at the resonance frequency has a resonance impedance less than the second acoustic impedance of the propagation medium. The matching layer has a third acoustic impedance less than the second acoustic impedance for providing a high output or high sensitivity signal when operated at the resonance frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.