Process and device for measuring eccentric rotary components

Details Process and device for measuring eccentric rotary components Process and device for measuring eccentric rotary components

G - Physics

01

B

G01B 11/08 (2006.01) G01B 11/24 (2006.01)

Patent

CA 2180718

An apparatus and a method are presented in order to carry out an automatic optical inspection of an off-center rotating component to be measured. Using a measurement procedure which avoids mechanical contact having a source producing parallel rays and a detecting means, the off-center rotating component is rotated about a rotational axis, whereby a motion of the detecting means is synchronized with the rotation and is carried out in such a fashion that the separation, in the direction of an optical axis, between the off-center rotating component and the detecting means remains constant. In this manner optical distortions are avoided which would otherwise occur in the optical measurement procedure.

L'invention a pour objet un procédé et un dispositif permettant d'effectuer un contrôle optique automatisé d'un élément de rotation excentrique soumis à un essai. L'élément excentrique est entraîné en rotation autour d'un axe de rotation par un procédé de mesure sans contact utilisant une source fournissant un faisceau de rayons parallèles, et un dispositif détecteur, procédé selon lequel un mouvement du dispositif détecteur synchronisé avec la rotation est effectué de telle façon que la distance en direction d'un axe optique entre l'élément de rotation excentrique et le dispositif détecteur demeure constante. On évite de cette façon des distorsions optiques qui se produisent lorsqu'on utilise le procédé de mesure optique.

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