Methods for detecting compression wood in lumber

Details Methods for detecting compression wood in lumber Methods for detecting compression wood in lumber

G - Physics

01

N

G01N 21/956 (2006.01)

Patent

CA 2601486

Methods are provided for detecting compression wood, blue stain, or pitch in lumber. A light beam is projected towards the wood sample. Line or area cameras acquire images of light that is reflected from the wood sample. Based on the intensity of the reflected light at one or more locations on the wood sample, compression wood, blue stain, or pitch may be detected.

Méthodes de détection du bois de compression, du bleuissement ou de la résine naturelle dans le petit bois d'ouvre. Un faisceau de lumière est projeté en direction de l'échantillon de bois. Des caméras linéaires ou matricielles prennent des images de la lumière réfléchie par l'échantillon de bois. En fonction de l'intensité de la lumière réfléchie à un ou à plusieurs endroits de l'échantillon de bois, il est possible de repérer du bois de compression, du bleuissement ou de la résine.

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