Nondispersive infrared gas analyzer
US4496840A · kind A · utility
12Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1981 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Aug 3, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/61
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A nondispersive, two-beam, infrared gas analyzer with two differently long measuring gas cells and differential detectors is improved by gilt detection cell interiors and absorbing rods in the detector cell which is in line with the shorter measuring gas cell. Adjustable absorption permits suppression of cross sensitivity errors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.