Matching region for damped piezoelectric ultrasonic apparatus
US4507582A · kind A · utility
134Cited by
2References
48Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1982 |
| Grant date | Mar 26, 1985 |
| Priority date | — |
| Expiry date | Sep 29, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An acoustic impedance match between an ultrasonic transducer and an adjacent transmission medium is obtained, with performance over a relatively wide bandwidth, by providing a special matching region between the transducer and the transmission medium. The matching region includes a layer having a multiplicity of tapered elements. Each of the elements tapers down in size in the direction away from the transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.