Analytical and Measuring Instruments

Lecture on Partical Analysis - Hands-on Course -

Particle Size Analysis

Introduction

Particle Size Distribution Dependent on Principle of Measurement

Measurement Range

Resolution

Calibration

Reproducibility of Measurement

Appropriate Concentration of Measurement Target

Factors Determining Measurement Result

Transferability of Particle Size Distribution Data Between Manufacturers and Models

Particle Shape Problems

Subjective Particle Size Distribution

Measurement of High-Concentration Samples

Fraunhofer Diffraction Theory and Mie Scattering Theory

Utilization of Diffracted/Scattered Light Intensity Distribution Data

Utilization of Diffracted/Scattered Light Intensity Distribution Data - Part 2

Fig. 2 Average Particle Size: Approx. 78 µm

Fig. 3 Average Particle Size: Approx. 18 µm

Fig. 4 Average Particle Size: Approx. 2 µm

Fig. 5 Average Particle Size: Approx. 1 µm

Utilization of Diffracted/Scattered Light Intensity Distribution Data - Part 3

Fig. 1 Changes in Light Intensity Distribution Data of Diffracted/Scattered Light Due to Concentration

(b) 2-Fold Concentration

Volume Standard and Number Standard in Particle Size Distribution

Dry Measurement

Average Values (Average Particle Size)

Standard Deviation

Arbitrary % Particle Size and Median Diameter

Particle Size Distribution Calculation Method

Measurement Time and Monitoring Function

Samples That Can and Cannot Be Measured

Sample Amount

Dry Measurement of Magnetic Particles

Measurement of Acicular/Fibrous Particles

Utilization of Diffracted/Scattered Light Intensity Distribution Data - Part 4