Research on the measurement range of particle size with laser backscattering based on PT algorithm

During the test of particle size with backscattering, the measurement range of particle size based on PT independent model algorithm. R-R particle size distribution function was simulated and analyzed as target for determining the particle size range. Simulation experiments illustrate that the particle size distribution can be retrieved very well in the range from 0.5μm to 15μm at relative refractive index m=1.57 in the visible-infrared spectral region, and the measurement range of particle size will vary with the varied wavelength range and relative. It provided a theory basis for practical application.