Method and device for determining the rectilinearity of...

G - Physics – 01 – B

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G01B 11/16 (2006.01) G01B 11/24 (2006.01) G01B 11/26 (2006.01) G01B 11/27 (2006.01) G01B 11/30 (2006.01)

Patent

CA 2451085

The invention relates to a method and a device for determining the rectilinearity of guide rails (FS), according to which a guide rail (FS) is aligned in a substantially parallel relation to a reference axis (AA'), at least one light beam is emitted by a light source (LQ) along the reference axis (AA'), and the light beam is detected by a light detector (LD). The method is further characterized in that the light source (LQ) or the light detector (LD) is displaced on the guide rail and the deflection and torsion of the guide rail (FS) is detected as changes of the distance between the guide rail (FS) and the reference axis (AA').

L'invention concerne un procédé et un dispositif pour déterminer la rectitude de rails de guidage (FS). Selon l'invention, un rail de guidage (FS) est orienté pratiquement parallèlement à un axe de référence (AA'), au moins un faisceau lumineux est émis par une source lumineuse (LQ) le long de l'axe de référence (AA') et le faisceau lumineux est détecté par un détecteur de lumière (LD). Le procédé selon l'invention est caractérisé en ce que la source lumineuse (LQ) ou le détecteur de lumière (LD) sont déplacés sur le rail de guidage et en ce que la courbure et le gauchissement du rail de guidage (FS) sont détectés en tant que modifications de l'écart entre le rail de guidage (FS) et l'axe de référence (AA').

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