Ultrasonic converter
US5457352A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1994 |
| Grant date | Oct 10, 1995 |
| Priority date | — |
| Expiry date | May 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02836
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An ultrasonic converter (1) is proposed with a housing (5) and a cylindrical ceramic oscillator (2) of slight thickness with metal electrodes (7, 8), arranged at the front faces of the ceramic oscillator (2) and an adaptation layer (3) made of a synthetic material arranged between the front face of the ceramic oscillator (2) facing the irradiating medium and the membrane (6) of the ultrasonic converter (1) formed by the floor of the housing. The remaining free space of the housing (5) is filled with a synthetic damping layer (4) for damping the ceramic oscillator [2]. The innovation of the invention lies in that the damping layer (4) is formed from a silicon elastomer of high density with a large proportion of metal oxide, which can be mixed and applied mechanically during the gel phase of the adaptation layer (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.