粒度分布测量中离心沉降径向稀释效应的补偿

Compensation of radial dilution effect of centrifugal subsidence in particle size distrlbution measurement.

对离心沉降式粒度分布测量中径向稀释效应产生的原因及其对测量结果的影响进行了分析。根据颗粒在离心力场中的运动状态和Lambert-Beer定律,导出了离心沉降测稀释效应的补偿系数,以及修正测量误差的方法,从而提高了测量的准确度。

The radial dilutin effect of centrifugal subsidence method in partiele size distribution measurement and its effect on tbe measurement results are examined. The compensation coefficient for the radial effect is deduced from the movement states of particles in the field of centrifugal force and the Lambert-Beer law to correct measurement er-rors. The application of compensation coefficient has increased the accuracy of measurement.