Sensor

G - Physics – 01 – B

Patent

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Details

G01B 11/00 (2006.01) A61G 5/10 (2006.01) G01B 11/14 (2006.01) G01D 5/26 (2006.01) G01D 5/347 (2006.01) G01L 3/12 (2006.01) G01L 5/00 (2006.01)

Patent

CA 2420586

The relative position of two members is determined based upon a detected relative intensities of first and second colors of light. The intensity balance associated with relative occlusion of first and second color filter portions on one member by a mask on the other member. An exemplary use is in rotational position sensing within a limited rotation range. With a given compliance between the two members, the position sensing can be used as a proxy for torque sensing.

L'invention porte sur une méthode d'utilisation d'un capteur. La position relative de deux éléments est déterminée d'après les intensités relatives de deux composantes chromatiques de lumière. L'équilibre d'intensité associé à l'occlusion relative d'une première et d'une seconde partie de filtres chromatiques d'un élément est mesuré au moyen d'un masque sur l'autre élément. Un exemple d'utilisation consisterait en la détection de position en rotation au sein d'une plage de rotation limitée. S'il y a une certaine conformité entre deux éléments, la détection de position peut être utilisée en tant qu'approximation pour la détection de couples.

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