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Machine translation
1. (WO1991003729) APPARATUS FOR MEASURING THE REFRACTIVE INDEX OF GASEOUS MEDIA
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1991/003729    International Application No.:    PCT/GB1990/001393
Publication Date: 21.03.1991 International Filing Date: 07.09.1990
Chapter 2 Demand Filed:    12.03.1991    
IPC:
G01N 21/45 (2006.01)
Applicants: DOWNS, Michael, John [GB/GB]; (GB).
BIRCH, Keith, Patrick [GB/GB]; (GB)
Inventors: DOWNS, Michael, John; (GB).
BIRCH, Keith, Patrick; (GB)
Agent: CULLIS, Roger; National Research Development Corporation, Patent Department, 101 Newington Causeway, London SE1 6BU (GB)
Priority Data:
8920366.5 08.09.1989 GB
Title (EN) APPARATUS FOR MEASURING THE REFRACTIVE INDEX OF GASEOUS MEDIA
(FR) APPAREIL MESURANT L'INDICE DE REFRACTION DES MILIEUX GAZEUX
Abstract: front page image
(EN)A refractometer for gaseous media including a polychromatic laser source (L) to produce a beam of radiation, a beam splitter (BS) to separate the radiation into a pair of component beams from said beam of polychromatic radiation, a sample cell (5) having first and second chambers, one of which provides a known standard optical path and a dispersive component (P) to separate out the polychromatic components of the component beams prior to fringe measurement.
(FR)Réfractomètre pour milieux gazeux comprenant une source laser polychromatique (L) destinée à produire un faisceau de radiations, un séparateur de faisceau (BS) destiné à séparer les radiations en deux faisceaux de constituants à partir dudit faisceau de radiations polychromatiques, une cuvette d'échantillons (5) possédant une première et une deuxième chambre, dont une fournit un trajet optique normal et un constituant dispersif (P) destiné à extraire les constituants polychromatiques des faisceaux de constituants avant que les franges ne soient mesurées.
Designated States: JP, US.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, IT, LU, NL, SE).
Publication Language: English (EN)
Filing Language: English (EN)