Growth state measuring device for crop in cultivation
A technology of growth status and measuring devices, which is applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of not measuring equipment and devices at the cultivation site
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[0021] In the growth state measuring device of a crop under cultivation according to the first embodiment of the present invention, the plant is a crop under cultivation in a growth stage before harvest, and the measurement part is any one of a stem, a fruit stalk, and a petiole, and in the operation part An arithmetic process is performed using a difference between a light-receiving signal when the detection light is projected at an irradiation timing of the light source and a light-receiving signal when the detection light is not projected before or after the irradiation timing. According to this embodiment, the influence of sunlight (direct current light), which is the strongest noise in the cultivation environment, can be eliminated, and the S / N with ambient light can be improved. , It can continuously measure the nutritional state of plants in a non-contact and non-destructive way in open-air, indoor and other cultivation sites.
[0022] In a second embodiment of the pres...
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