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METHOD FOR DETERMINING THE AVERAGE PARTICLE SIZE OF PARTICLES WHICH ARE SUSPENDED IN A LIQUID AND FLOWING MEDIUM, BY MEANS OF DYNAMIC LIGHT SCATTERING, AND A DEVICE THEREFORE
METHOD FOR DETERMINING THE AVERAGE PARTICLE SIZE OF PARTICLES WHICH ARE SUSPENDED IN A LIQUID AND FLOWING MEDIUM, BY MEANS OF DYNAMIC LIGHT SCATTERING, AND A DEVICE THEREFORE
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机译:用动态光散射法测定悬浮在液体和流动介质中的平均颗粒尺寸的方法及其装置
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摘要
In determining the size of particles in a flowing sample, initially scattered light is detected on a detector, in the form of images, standardization of the measured images takes place and determination of an offset and of an angle of rotation at least of a partial region of two temporally successive images relative to each other is effected. Two images congruent are subdivided into many partial areas with respectively a specific number of pixels and averaging of the brightness values of each individual partial area is implemented. Subsequently, the average brightness value of a partial area of the first image is correlated with the average brightness value of the partial area made congruent with this partial area in the second image (cross-correlation between the images). For each pair of congruent partial areas of the images, a correlation value is thereby produced.
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