Patent ID: 6606405
Filing Date: 2003-08-12
Classification: D21B,G01N

Abstract:
A wood chips analyser comprising:a transparent conveyor for conveying the chips from an upstream position to a downstream position, the transparent conveyor having a top and a bottom surfaces; means for feeding the chips to the transparent conveyor; means for spreading the chips on the transparent conveyor; a pair of cameras, one of the cameras facing the top surface of the transparent conveyor, the other camera facing the bottom surface of the transparent conveyor, both cameras being focused on an imaginary line crossing the transparent conveyor, each camera having an output; means for receiving the output of each camera and analysing the same in order to categorize the chips according to predetermnined criteria and produce an output; means for controlling the transparent conveyor, the pair of cameras, the means for feeding the chips, the means for spreading the chips and the means for receiving the output of each camera; and means for collecting and weighing dust contained in said chips, said means for collecting and weighing being placed upstream of said means for spreading the chips on the transparent conveyor.