Angle measuring device

G - Physics – 01 – C

Patent

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Details

G01C 1/02 (2006.01) G02B 23/16 (2006.01)

Patent

CA 2641684

An angle measuring device for optical angle measurement has a telescope body 5 which is rotatably mounted around at least one shaft (1, 2; 11), wherein the shaft (1, 2; 11) is rotatably mounted at at least two bearing points 6, and the bearing points 6 are at a distance from one another in the direction of the shaft (1, 2; 11). In this case, at least two sensor arrangements for detecting the position of the shaft (1, 2; 11) are respectively arranged at a measurement point along the shaft (1, 2; 11), wherein the measurement points are at a distance from one another in the direction of the shaft (1, 2; 11). At least one of the sensor arrangements has a group of capacitive sensors (7a, 7b, 7c, 7d) which detect a displacement of the shaft (1, 2; 11) in directions perpendicular to the axial direction at the measurement point.

L'invention concerne un rapporteur d'angle pour la mesure optique d'un angle qui présente un corps (5) de longue-vue monté de manière à pouvoir tourner autour d'au moins un axe (1, 2 ; 11), l'axe (1, 2 ; 11) étant monté de manière à pouvoir tourner en au moins deux points (6) d'appui et les points (6) d'appui étant espacés l'un de l'autre en direction de l'axe (1, 2 ; 11). Au moins deux arrangements de détection destinés à détecter la position de l'axe (1, 2 ; 11) sont respectivement disposés en un point de mesure le long de l'axe (1, 2 ; 11), les points de mesure étant espacés l'un de l'autre dans le sens de l'axe (1, 2 ; 11). Au moins l'un des arrangements de détection présente un groupe de capteurs (7a, 7b, 7c, 7d) capacitifs qui, au niveau du point de mesure, détecte un décalage de l'axe (1, 2 ; 11) dans les directions perpendiculaires au sens de l'axe.

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