Analysing device non-destructive of plants and vehicle...

G - Physics – 01 – N

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Details

G01N 21/64 (2006.01) A01G 7/00 (2006.01) B60P 3/00 (2006.01)

Patent

CA 2315357

The invention concerns an analysing device non-destructive of plants and a vehicle comprising such device on board. Said device comprises a unit (3) transmitting a calibrated excitation laser beam (6), a unit (4) measuring and imaging the fluorescence emitted by the irradiated plant(s) (2) and a unit for digitally processing, storing and editing or displaying the collected images, associated with a computer unit controlling and managing the device operation. The invention is characterised in that the transmitting unit (3) provides at least two laser excitation wavelengths and the measuring and imaging unit (4) comprises means (7, 8, 9) for forming, from a common fluorescence beam (6') emitted by the plant(s), simultaneously or successively, at least two secondary beams, each having its own wavelength and each constituting a fluorescence image at a matrix sensor (10), over the whole surface thereof or over part of the surface thereof, each image being separate for each secondary beam.

La présente invention a pour objet un dispositif d'analyse non destructive de plantes et un véhicule comportant un tel dispositif embarqué. Dispositif comprenant une unité (3) d'émission d'un faisceau d'excitation laser calibré (6), une unité (4) de mesure et de prise d'images de la fluorescence émise par la ou les plante(s) (2) irradiée(s) et une unité de traitement numérique, de stockage et d'édition ou de visualisation des images recueillies, associée à une unité informatique de commande et de gestion du fonctionnement du dispositif, caractérisé en ce que l'unité d'émission (3) fournit au moins deux longueurs d'ondes d'excitation laser et en ce que l'unité (4) de mesure et de prise d'images comporte des moyens (7, 8, 9) pour former, à partir d'un même faisceau de fluorescence (6') émis par la ou les plante(s) (2), simultanément ou successivement, au moins deux faisceaux secondaires, ayant chacun une longueur d'onde propre et constituant chacun une image de fluorescence au niveau d'un capteur matriciel (10), sur la totalité de la surface de ce dernier ou sur une partie de la surface de ce dernier, distincte pour chaque faisceau secondaire.

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