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What is Single Particle Optical Sizing (SPOS)?

April 26, 2017optical particle sizing spos

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What is Single Particle Optical Sizing (SPOS)?

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Single particle optical sizing (SPOS), also known as optical particle counting (OPC), passes particles one at a time past a laser where light scattering or obscuration (blockage) is counted by the detector. The technique works well to find particle outliers in a multi-modal particle distribution. SPOS can measure particles ranging in size from 0.5 um to 2500 um.