De-iced total air temperature sensor

Details De-iced total air temperature sensor De-iced total air temperature sensor

G - Physics

01

K

G01K 13/02 (2006.01)

Patent

CA 2488907

The invention relates to a sensor which is used to measure physical parameters in relation to a fluid, such as the total air temperature. The inventive sensor comprises: a fluid intake (1) which is mounted on a profiled body (2); a conduit which is disposed inside the aforementioned profiled body (2) for the passage of the fluid, said conduit being connected to the fluid intake (1); and a sensitive element which is disposed inside the conduit. According to the invention, the sensor is characterised in that it comprises elements that ensure an improved measuring performance. In particular, the inlet section of the air intake extends such as to define a sliding surface that is conducive to the elimination of the ice. The invention also relates to a boundary layer suction system which is improved through the use of grooves and a sensitive ceramic element which is used for thermal decoupling which is optimised along with the de-iced body.

Capteur de mesure de paramètre(s) physique(s) sur un fluide, notamment la température totale de l'air, comportant une prise de fluide (1) rapportée sur un corps profilé (2), un conduit aménagé dans ledit corps profilé (2) pour permettre l'écoulement du fluide, ledit conduit communiquant avec ladite prise de fluide (1), un élément sensible disposé à l'intérieur dudit conduit. Capteur caractérisé en ce qu'il comporte des éléments lui conférant des performances de mesure améliorées. Notamment, la prise d'air proposée présente une section d'entrée qui s'étend de façon à définir une surface de glissement propice à l'élimination du givre. L'invention présente également un système d'aspiration de couche limite amélioré par l'utilisation de rainures et un élément sensible céramique assurant un découplage thermique optimisés avec le corps dégivré.

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