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Nieuwenhuis, J.H. (author), Lubking, G.W. (author), Vellekoop, M.J. (author)The invention relates to an apparatus for determining the shape and/or size of small particles, comprising a cell into which the particles are placed, at least one light source for illuminating the particles, and at least one one-dimensional image sensor for measuring an image of the illuminated particles. The cell is embodied as a conduit...patent 2002