Semiconducting oxide gas sensors and materials therefor

Details Semiconducting oxide gas sensors and materials therefor Semiconducting oxide gas sensors and materials therefor

G - Physics

01

N

G01N 27/12 (2006.01)

Patent

CA 2142696

The selectivity of response of resistive gas sensors to specific gases or vapours is improved by the selection of specified gas-sensitive materials which are not previously known for the applications described, which include detection of hydrocarbons in tho presence of CO, H2S, SO2, chlorine, NO2, CO2 (especially in low concentrations), CFC's, ammonia, free oxygen by determination of partial pressure, and numerous organic gases and vapours.

On améliore la sélectivité de la réponse de détecteurs de gaz résistifs à des gaz ou vapeurs spécifiques, en sélectionnant des matériaux spécifiques sensibles aux gaz qui étaient jusqu'ici inconnus pour les applications décrites. Ces dernières incluent la détection d'hydrocarbures en présence de CO, H2S, SO2, chlore, NO2, CO2 (surtout à faibles concentrations), CFC, gaz ammoniac, oxygène libre par la détermination de la pression partielle, et de nombreux gaz ou vapeurs organiques.

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