Spectroscopic cell design
US5351120A · kind A · utility
4Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1993 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Jul 12, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/054
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The spectrographic sample cell for the analysis of trace impurities in sample gases. The cell is provided with a gas inlet, a gas outlet and a volume for confining the sample gases for analysis. Two mirrors are provided, a first mirror proximate the gas inlet the second mirror proximate the gas outlet, the first mirror having a hole at its radial center. A conically-shaped cell profile is further provided such that the formation of vortices of sample gas is prevented in the cell upstream of or in the region where the analysis of trace impurities is to take place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.