Device for discriminating fluids having different refractive indices and device for measuring the voluminal fraction of at least one fluid of a current of non-mixible fluids incorporating the discrimination device
US4907878A · kind A · utility
9Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1986 |
| Grant date | Mar 13, 1990 |
| Priority date | — |
| Expiry date | Nov 25, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/431
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The discriminating device comprises an optical coupler (4) having at least three ends (5 to 8) to which are connected a semiconductor source of light (1) whose intensity is modulated, a semiconductor photoconductor (2) and an optical probe constituted by a multi-mode optical fibre (3) whose end has a pointed shape. This discriminating device is in particular applicable in a device for measuring the voluminal fraction of at least one fluid of a current of non-mixible fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.