Combustion gas sensor

Details Combustion gas sensor Combustion gas sensor

G - Physics

01

N

G01N 27/12 (2006.01)

Patent

CA 2666560

The invention relates to a combustion gas sensor, said sensor comprising one or more metallic oxides forming an adsorption semi-conductor having an electric resistance that varies according to the adsorbed gas, and said semi-conductor being a direct gas adsorption semi-conductor without catalyzed chemical reaction, wherein said sensor is designed for detecting nitrogen oxides in the case of a strong fire and/or said sensor is designed for detecting, in case of smoldering fire, the partially unburnt gases, in particular alcohols, aldehydes, ketones, carboxylic acids or amines.

Capteur de gaz émis par une combustion, lequel capteur comprend un ou plusieurs oxydes métalliques formant un semi-conducteur à adsorption dont la résistance électrique change en fonction du gaz adsorbé, lequel semi-conducteur est un semi-conducteur à adsorption directe de gaz sans réaction chimique catalysée, lequel capteur est agencé pour détecter des oxydes d'azote dans le cas d'un feux vif, et/ou lequel capteur est agencé pour détecter dans le cas d'un feux couvant des gaz partiellement imbrûlés, en particulier les alcools, les aldéhydes, les cétones, les acides carboxyliques, ou encore les amines.

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