Gas sensor

G - Physics – 01 – N

Patent

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Details

G01N 21/03 (2006.01) G01N 21/31 (2006.01) G01N 21/35 (2006.01)

Patent

CA 2537195

A gas sensor comprising at least two light source, projection optics and a light-reflecting chamber provided with at least one light entry opening. The gas sensor further comprises a detector that cooperates with the light- reflecting chamber, by means of which detector light from the light source can be detected. The at least two light sources, which can each be projected on a light entry opening of the chamber by means of said projection optics.

L'invention concerne un capteur de gaz qui comprend au moins deux sources lumineuses, un système optique de projection et une chambre de réflexion de lumière comportant au moins une ouverture d'entrée de lumière. Le capteur de gaz comprend de plus un détecteur qui coopère avec la chambre de réflexion de lumière pour détecter la lumière provenant des sources lumineuses. Les sources lumineuses peuvent être projetées chacune sur une ouverture d'entrée de lumière de la chambre au moyen du système optique de projection.

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