Determination of Spatial Distributions of Particles on Shape and Size Using Multiplexed Matched Spatial Filter

Abstract

A new technique for the measurement of particles in powder processing has been developed to identify the shape, size and position of multiform particles simultaneously and instantaneously. A new Multiplexed Matched Spatial Filter which is a single exposure hologram was employed for the new technique. In the identification tests, the input objects were discriminated by their autocorrelation peaks and their positions were acculately determined. It was concluded from the theoretical and experimental studies that the present method could be applied to simultaneously and instantaneously identify the shape, size, number and position of multiform particles in powder processing.