Apparatus for determining odor levels in gas streams

G - Physics – 01 – N

Patent

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Details

G01N 1/38 (2006.01) G01N 33/00 (2006.01) G01N 1/22 (2006.01)

Patent

CA 2338749

A microprocessor-based apparatus is provided for determining oder levels in gas streams. The apparatus includes a mixing chamber (60) for mixing gas from a gas supply to be tested with air to form a gas-air mixture. The gas is received through a gas inlet port (50). Air is received through an intake port (48). The gas air mixture exits the mixing chamber via an outlet port (58). A motorized fan (94) is positioned in a conduit (76) connected to an outlet port of the mixing chamber for drawing the gas-air mixture out of the mixing chamber to a location where it can be sniffed by the user to detect oder. The apparatus also includes a microprocessor controller (100) and can be linked to a personal computer (108) to enable data to be exchanged between the personal computer and the apparatus.

Cet appareil fonctionnant avec un microprocesseur et servant à déterminer des niveaux d'odeur dans des flux gazeux, comporte une chambre de mélange (60) dans laquelle le gaz provenant d'une alimentation en gaz à éprouver se mélange à de l'air, formant un mélange gaz air. Le gaz et l'air arrivent par deux orifices d'admission distincts (50 et 48, respectivement) et le mélange gaz-air sort par un orifice d'évacuation (58). Une soufflante motorisée (94), placée dans un conduit (76) relié à l'orifice d'évacuation de la chambre de mélange, aspire le mélange gaz-air hors de la chambre et l'amène en un point où il peut être humé par un opérateur aux fins de la détection d'une odeur. Cet appareil, qui comporte également une unité de commande à microprocesseur (100), peut être raccordé à un ordinateur personnel (108), ce qui permet un transfert de données entre cet appareil et l'ordinateur.

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