Method of and apparatus for measuring the geometric...

G - Physics – 01 – B

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G01B 11/00 (2006.01) G01B 11/27 (2006.01) G01M 11/02 (2006.01) G02B 6/38 (2006.01)

Patent

CA 2082908

The method and the device are intended to measure the geometrical characteristics of components of optical communication systems comprising a body(1) with nominally cylindrical external surface and an internal element (2) nominally coaxial with body (1). The component is placed in a V-groove (3) and rotated by 360°. A TV-camera (8) detects the curve (4) described by a point of the internal element during the rotation. Numerical analysis of the curve provides, by a single operation, eccentricity of the internal element and non-circularity of the external surface of the body. (Fig. 5)

La présente invention a pour objet une méthode ainsi qu'un dispositif servant à mesurer les caractéristiques géométriques de composants entrant dans la fabrication de systèmes de communication optiques; le dispositif en question comporte un corps (1) dont la surface extérieure est essentiellement cylindrique, ainsi qu'un élément interne (2) dont la disposition à l'intérieur du corps est essentiellement coaxiale. L'élément interne est logé dans une rainure en V (3) et capable de 360 degrés de rotation. Une télécaméra (8) détecte la courbe (4) décrite par un point de l'élément interne durant sa rotation. L'analyse numérique de la courbe permet de déterminer, en une seule opération, l'excentricité de l'élément interne et la non circularité de la surface externe du corps (fig. 5).

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