Device for the gravimetric detection of particles in a fluid medium, comprising an oscillator over which a fluid stream flows, production process and method of employing the device
US8844340B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 2009 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Jan 14, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0402
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides a device for the gravimetric detection of particles in a fluid medium, simultaneously providing a high quality factor, easier operating conditions, small size and low production costs. For this purpose, the subject of the invention is a device for the gravimetric detection of particles in a fluid medium, comprising a flat electromechanical oscillator (1), means for supporting the oscillator and means for actuating said oscillator, said means being designed to ensure that the oscillator (1) vibrates in its plane, said device further including a channel (4) for passage of the fluid, said channel being in fluid communication with a through-cavity (1b) made in said oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.