Pre-analysis chamber for a flow particle analyzer
US5808737A · kind A · utility
25Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1997 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Feb 25, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/0382
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pre-analysis chamber having reduced turbulence is provided for a flow particle analyzer. The chamber has a conical diverging section for decelerating sheath fluid flow to form a laminar profile, followed by a conical converging section for accelerating flow. A sample inlet tube is supported in the chamber near the interface between the diverging and converging sections, and terminates in the laminar, accelerated sheath flow. The sample enters the laminar sheath flow to form a discrete sample stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.