Fluorescent gas analyzer
US4260890A · kind A · utility
5Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1979 |
| Grant date | Apr 7, 1981 |
| Priority date | — |
| Expiry date | Jun 25, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/64
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluorescent gas analyzer that provides a DC output signal that is proportional to the concentration of a given gas that fluoresces within a reaction cell over a predetermined interval is disclosed. The analyzer includes a detector combination and a compensation circuit that prevent the output signal from being affected by scattered excitation energy detected by the fluorescence detector or by variations in the excitation energy. The analyzer is particularly adapted for detecting fluorescence from SO.sub.2 that is excited by UV radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.