Particle Size Distribution Analyzer AN140 A A A p p p p p p l l l i i i c c c a a a t t t i i i o o o n n n s s s N N N o o o t t t e e e Glass Beads PARTICLE SIZE AND SHAPE ANALYSIS OF GLASS BEADS FOR PAVEMENT MARKINGS Summary Glass beads are used in a wide range of industrial applications. Street signs and pavement markings use glass beads to increase light reflection at night. The size and shape of the bead is critical to its reflective characteristics. Measuring the size and roundness of beads can be a time consuming process involving multiple measurements and multiple techniques. The Camsizer Digital Image Processing analyzer combines size classification and roundness characterization into one easy, automated measurement. Introduction In 1930,

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