Method and device for measuring oxygen content

Details Method and device for measuring oxygen content Method and device for measuring oxygen content

G - Physics

01

N

G01N 33/00 (2006.01) A62C 3/02 (2006.01) G01N 27/416 (2006.01) G08B 17/117 (2006.01) A62C 99/00 (2010.01)

Patent

CA 2471959

The invention relates to a method for measuring the oxygen content in a closed target space (10), particularly for monitoring inertization levels in an inert gas device for fire prevention and/or fire extinguishing (15), and a device for carrying out the method. Toward the aim of proposing a method for measuring the oxygen content in a target space (10) with which an effective, certain, and representative determination of the oxygen concentration can be achieved for an optimally small expenditure in instrumentation and signal processing, the method provides that air samples are drawn from the target space (10), and the oxygen concentration of the air samples is determined. The device is equipped with a suction pipe system (1) for sucking the air sample from the target space (10) through various holes (2) so that it can carry out the method.

L'invention concerne un procédé de mesure de la teneur en oxygène dans un espace cible fermé (10), notamment de surveillance du niveau d'inertie d'un dispositif à gaz inerte destiné à la prévention et/ou à l'extinction d'un incendie (15), ainsi qu'un dispositif permettant de mettre en oeuvre ce procédé. L'invention vise à fournir un procédé de mesure de la teneur en oxygène dans un espace cible (10) qui permette une détermination efficace, sûre et représentative de la concentration en oxygène et ce, à faible coût en termes d'instruments et de traitement des signaux. A cet effet, il convient de prélever des échantillons d'air dans l'espace cible (10) et de déterminer la concentration en oxygène des échantillons d'air. Pour la mise en oeuvre de ce procédé, le dispositif est équipé d'un système de tuyau d'aspiration (1) destiné à aspirer les échantillons d'air de l'espace cible (10) à surveiller par différents orifices d'aspiration (2).

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