Recurrence Formulae for Particle Size Distribution Calculation
计算颗粒粒度分布的递推算法

Based on the Stokes formula and Lambert-Beer Law, a series of recurrence formulae were advanced to calculate particle size distribution from the data obtained by disc centrifuge photosedimentation, with the effect of extinction efficiency of particles and the radial dilution during sedimentation considered. The experimental results show that the calculation process is simple and the result is accurate. This method can be also used for particle sedimentation in gravitational field.