Ultrasonic driver transducer
US3968459A · kind A · utility
8Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1975 |
| Grant date | Jul 6, 1976 |
| Priority date | — |
| Expiry date | Jan 29, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/30
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An ultrasonic driver transducer employs a piezoelectric element excited by pulsed carrier signals and generates a propagating ultrasonic wave focused in acoustically matched relation by a metal plano-concave lens through a liquid medium for collimated flow into a metal coupler output element and then into the external specimen or element that is to be excited by ultrasonic energy. Means are provided for filling internal cavities of the instrument with a liquid medium for propagating only the desired waves, along with means for purging entrapped gas from that interior medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.