It can analyze a wide range of particle sizes, from nanometers to millimeters, and can handle a variety of sample types, including powders, emulsions, suspensions, and aerosols.Īpplications of laser diffraction include pharmaceuticals, cosmetics, food and beverages, minerals and mining, environmental monitoring, and many other industries where particle size analysis is crucial for product quality and performance. It is non-destructive and provides rapid measurements, making it suitable for both laboratory and industrial applications. Laser diffraction offers several advantages over other particle sizing techniques. Larger particles will scatter light at smaller angles, while smaller particles will scatter light at larger angles. This is because the angle at which the light is scattered is inversely proportional to the size of the particles. This pattern is captured by a detector, such as a camera or a photodiode array, which then analyzes the intensity and angle of the scattered light.īy analyzing the diffraction pattern, the size distribution of particles in the sample can be determined. As the laser beam passes through or interacts with the particles, it undergoes diffraction, resulting in a scattering pattern. In laser diffraction, a laser beam is directed towards the sample containing particles of different sizes. It is based on the principle of diffraction, which occurs when a beam of light encounters an obstacle or passes through a narrow aperture, causing it to spread out and create a pattern of interference. Laser diffraction is a technique used in the field of optics and physics to analyze and measure the size distribution of particles in a sample. Why particle size analysis matters - Using Laser Diffraction
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