Optical device for detecting live insect infestation

G - Physics – 01 – N

Patent

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Details

G01N 21/84 (2006.01) G01N 33/10 (2006.01) G01V 8/10 (2006.01)

Patent

CA 2646984

The disclosure relates to a detection device for detecting movement of a live insect located within a seed or grain. The device may include a light source with a masking arrangement to block stray light. It may also include a detection region sized to contain at least one seed. Finally, the device may include a detection instrument able to detect changes in light from the light source caused by movement of an insect within the seed. The disclosure also relates to a method of detecting an insect in a seed. First, one may pass light through the seed. Then one may detect light passed through the seed and, based on the light passed through the seed, determine whether or not an insect within the seed is moving.

L'invention concerne un dispositif de détection permettant de détecter les mouvements d'un insecte vivant dans une semence ou une graine. Le dispositif peut comprendre une source lumineuse avec un ensemble de masquage destiné à bloquer la lumière parasite. Il peut également comprendre une zone de détection conçue pour contenir au moins une semence. Le dispositif peut enfin comprendre un instrument de détection capable de détecter des variations dans la lumière produite par la source de lumière, causées par les mouvements d'un insecte dans la semence. L'invention concerne également un procédé permettant de détecter un insecte dans une semence. Ce procédé consiste tout d'abord à faire passer la lumière par la semence, puis à détecter la lumière qui est passée par la semence et, selon cette lumière, à déterminer si un insecte bouge à l'intérieure de la semence.

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