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Abnormal Moving of Scattered Energy Distribution and Its Effect on Particle Size Analysis
  • Release date:2018-08-07     Sources:      Browse times:220
    • Laser particle sizer which based on Mie scattering is one of the most widely used
      instruments in particle size measurement. Generally the smaller the particles are, the bigger the
      scattering angle is, the main peak position of Mie scattered energy distribution received by the
      detector array moves outward. However, to some particles of relative index of refraction in certain
      size ranges, the main peak position of scattered energy distribution moves toward the inside of the detector array as the particle size decreases, this can be called the abnormal moving of scattered
      energy distribution. Based on Mie scattering theory, the patterns of such abnormal moving and
      abnormal particle size interval of different relative index of refraction are obtained, the effect on
      particle size analysis is analysed, a method to reduce the effect is proposed and an actual sample is
      measured and compared. The result shows that, this method can reduce the effect of abnormal
      moving on particle size analysis.

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