G - Physics – 01 – P
Patent
G - Physics
01
P
G01P 13/02 (2006.01) B64D 15/12 (2006.01)
Patent
CA 2355384
It is very important to know the parameters concerning lifting capacity and angle of attack to ensure an aircraft safety. Hence the use of a vane (1, 2) enables to measure wind orientation (6), wherefrom is derived the computation of those two parameters. The vane is an element external to the aircraft, and consists of a blade (2), an element which wind-sensitive. The reliability of said vane is directly dependent on its shape. The invention concerns a device for heating the vane blade. A heater (4) is inserted by a base (1) of the blade unexposed to outside conditions. Moreover the heater is automatically controlled by external climatic conditions, and is adapted to the temperature gradient observed on the blade.
La connaissance des paramètres de portance et d'incidence est nécessaire pour la sécurité d'un avion. L'utilisation d'une girouette (1, 2) permet la mesure de l'orientation du vent (6), d'où découle le calcul de ces deux paramètres. La girouette est un élément externe à l'avion, et est composée d'une palette (2), élément sensible au vent. La fiabilité de cette girouette dépend directement de sa géométrie. On propose un dispositif permettant le réchauffage de la palette de la girouette. On insère un réchauffeur (4) par une embase (1) de la palette non exposée aux conditions extérieures. De plus le réchauffeur est asservi aux conditions dimatiques externes, et est adapté au gradient de température observé sur la palette
Goudreau Gage Dubuc
Thales Avionics S.a.
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