| Based on the point that raisins have the different colours ,in order to sort the green raisin from the various colour raisins, the paper desgins a new kind of elector-optical colour sorter : colour sorter for raisin,with which raisins quality can be enhanced.The paper discusses the design ideology ,working principle and structure characteristic for the colour sorter for raisin,it discusses electromagnetism libration principle in the feed system and the face CCD in optical system -and puts forward a new kind of sorting setting:electromagnetism shutter.lt introduces hardware and software system of image process for colour sorter for raisin. It makes used of difference of RGB in bitmap files and programs to raisin's images.Through many experiments the possibility of the sorter has already been proved.In the completed experiment of sorter,the raisin can go orderly through the optical detecting system and can be sorted accurately by electromagnetism shutter. The result indicates its productivity is 120-150kg/h ,the demands of the design are satisfied. |