Measurement of the motion of fertilizer particles leaving a centrigugal spreader using a fast imaging system
Catégorie
Journal Article
Auteurs
Cointault, F., Sarrazin, P., Paindavoine, M.
Année
2003
Titre
Measurement of the motion of fertilizer particles leaving a centrigugal spreader using a fast imaging system
Journal / Livre / Conférence
Precision Agriculture
Résumé
Although mechanically simple, centrifugal spreaders used for mineral fertilization involve complex physics that cannot be fully characterized at the present time. We are developing sensors to evaluate the spatial distribution of the fertilizer on the ground based on the measurement of initial flight conditions of fertilizer granules after their ejection by the spreading disk. The techniques developped are based on the analysis of images of the area around the disk showing the granule ejection. A high resolution – low cost imaging system for the analysis of high speed particle projection developed for this specific purpose is presented in this paper. The system, based on a camera and a sequence of flashes, is used to characterize the centrifugal spreading of fertilizer particles ejected at speeds of approximately 30 ms
Volume
4
Pages
279-295