Method and apparatus for damping an ultrasonic transducer suitable for time of flight ranging and level measurement systems
US7196971B2 · kind B2 · utility
2Cited by
13References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2004 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Apr 16, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S367/908
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for damping an ultrasonic transducer suitable for time of flight ranging and level measurement systems. The ultrasonic transducer comprises a damping component which absorbs vibrations in the transducer to reduce the ringing effect. The damping component is subjected to plasma etching to produce a surface which readily bonds to component(s) of the transducer. According to one aspect, the damping component is formed from an inert elastomer, such as silicone rubber, and the transducer component is made of stainless steel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.