Influence of sample concentration on test results in particle size distribution test

Influence of sample concentration on test results in particle size distribution test

Generally, particle size distribution measurement is achieved by the system identifying and receiving optical signals. The strength of the light signal is determined by the number of particles in the suspension. Taking the laser scattering test method as an example, the higher the particle concentration in the suspension, the stronger the scattered light signal, but the accompanying complex scattering phenomenon is also aggravated, which affects the test results. On the contrary, the lower the particle concentration in the suspension, although the complex scattering phenomenon is alleviated, the signal-to-noise ratio decreases, and the representativeness is not enough, which also affects the measurement results. The situation is similar for other particle size distribution measurement methods. Proper particle concentration is important and affects the results of particle size distribution tests.