Gas measuring apparatus with means to reduce thermal radiation effects
US4606644A · kind A · utility
2Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1985 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Jul 15, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0813
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas measuring device has a source capable of emitting a beam of radiation aligned to impinge a detector. A housing means encloses the beam. The housing means has a plurality of apertures permitting the gas to enter the housing means, to intercept the beam, and to exit from the housing means. The device further comprises means to control the amount of thermal radiation reaching the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.