AMBIENT AIR QUALITY MEASURING UNIT COMPRISING AIR INTAKE HANDLES DESIGNED TO AVOID THE INTRODUCTION OF RAIN, AND ASSOCIATED MEASUREMENT MODULE

摘要

The invention relates to a measuring box (1) for mounting on a vehicle, comprising a chamber (2) containing at least electronic sensors measuring characteristics of an air flow inside the housing. The chamber (2) is covered with a cover (4) having on the side a plurality of openings (7) of air inlets on the sidewall extending by a straight conduit ending in a wall (8) called "Impactor" forming a plane perpendicular to the direction of the conduit. The bottom of the conduit opens on a first passage along the impactor in the direction of the base of the housing to evacuate by gravity the non-gaseous elements, and on a second passage (9) along the impactor in another direction and giving access to inside the room. The impactor thus stops the water particles by evacuating them by gravity downwards, while the gaseous component of the ambient air runs along the impactor laterally and penetrates inside the housing.