Device for determining the values of at least one parameter...

G - Physics – 01 – N

Patent

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Details

G01N 15/00 (2006.01) B64D 15/20 (2006.01) G01N 15/02 (2006.01) G01P 3/40 (2006.01)

Patent

CA 2372297

The invention concerns a device (1) comprising a measuring element (2) including a measuring zone (ZM) designed to receive particles, illuminating means (M1) capable of illuminating the measuring zone (ZM) with a light beam (7B), imaging means comprising at least a camera (3) capable of producing at least an image of the measuring zone (ZM) illuminated by said illumination means (M1), and processing means (4) capable of determining the values of a parameter, from the image produced by the camera (3). The illuminating means (M1) are configured so as to produce punctual illumination, with a light beam (7B) whereof the rays are focused on an optical objective (12B) of the imaging means.

Le dispositif (1) comporte un élément de mesure (2) comprenant une zone de mesure (ZM) qui est destinée à recevoir les particules, des moyens d'illumination (M1) susceptibles de réaliser une illumination de la zone de mesure (ZM) au moyen d'un faisceau lumineux (7B), des moyens de prise de vue comportant au moins une caméra (3) susceptible de prendre au moins une image de la zone de mesure (ZM) illuminée par lesdits moyens d'illumination (M1), et des moyens de traitement (4) susceptibles de déterminer les valeurs du paramètre, à partir de l'image prise par la caméra (3). Les moyens d'illumination (M1) sont formés de manière à réaliser une illumination ponctuelle, au moyen d'un faisceau lumineux (7B) dont les rayons lumineux sont focalisés sur une optique d'objectif (12B) des moyens de prise de vue.

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