Method and apparatus for a rotation angle sensor

G - Physics – 01 – P

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G01P 3/26 (2006.01) G01D 5/30 (2006.01) G01D 5/42 (2006.01) G01P 15/00 (2006.01) G01P 15/08 (2006.01) G01P 15/093 (2006.01)

Patent

CA 2262587

A rotation angle sensor (102) has a fluid-filled container (104) which houses a vane (107) immersed in the fluid (106). The vane (107) which rotates freely with respect to the container (104). The container (104) is fixedly attached to a body for which rotation angle measurement is desired. When the body, and therefore container (104) rotates, the fluid (106), and therefor vane (107) tend to remain fixed with respect to the rotation. The angle of rotation can therefore be measured by determining the amount the container (104) has rotated with respect to the vane (107).

L'invention concerne un capteur (102) d'angle de rotation comportant un conteneur (104) rempli de fluide, et logeant une ailette (107) immergée dans le fluide (106). L'ailette (107) tourne librement par rapport au conteneur (104). Le conteneur (104) est fixé à un corps dont on veut mesurer l'angle de rotation. Lorsque le corps, et par conséquent le conteneur (104), tourne, le fluide (106), et par conséquent l'ailette (107), tend à demeurer fixe par rapport à la rotation. On peut donc mesurer l'angle de rotation en déterminant l'ampleur du mouvement de rotation effectué par le conteneur (104) par rapport à l'ailette (107).

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