Device and method for producing high-pressure ultrasonic pulses
US7264597B2 · kind B2 · utility
33Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/0215
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for producing high pressure ultrasound pulses. The device includes an ultrasound source having a piezoelectric transducer provided with electrodes and presenting polarization in a given direction (f1). An electrical voltage is applied to the electrodes to emit an ultrasound wave and to apply an electric field in a direction (f2) opposite to the polarization direction (f1) in order to compress the ultrasound transducer. A transient electric field having the same direction (f3) as the polarization direction (f1) is then applied so as to cause a compression ultrasound wave to be emitted in the coupling medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.