The la 960 particle size analyzer represents the tenth generation laser diffraction instrument designed by horiba.
Laser diffraction particle size analyzer working principle.
As a technique that measures particle size distribution for both wet and dry dispersions it offers many advantages including a high level of precision fast response.
Light scatters more intensely and at smaller angles off of large particles than small particles.
The ls 13 320 series is the most versatile and sophisticated laser diffraction particle sizing analyzer available today.
Laser diffraction has emerged as one of the most important and effective techniques in the world of particle size analysis thanks to its fast non destructive properties its suitability for a broad range of particle sizes and its ability to be fully automated.
It works on the principle that when a beam of light a laser is scattered by a group of particles the angle of light scattering is inversely proportional to particle size ie.
A guide to understanding laser diffraction principles theory.
The larger the particle the smaller the angle and the higher the intensity of the scattering.
Two light sources at different wavelengths.
At its very most basic laser diffraction is about the relationship between particle size and the angle and intensity of scattered light.
A typical laser diffraction optical system will include.
Very high quality lenses mirrors and glass measurement cell.
Every analyzer from the very first commercial prototype to the state of the art la 960 utilizes this principle.
Hundreds of refinements to the basic design have been included to improve performance and usability.
Large particles scatter light at small angles relative to the laser beam and small particles scatter light at large angles as illustrated below.
The ls 13 320 offers the highest resolution reproducibility and unsurpassed accuracy.
Ls 13 320 particle size analyzer.
Laser diffraction measures particle size distributions by measuring the angular variation in intensity of light scattered as a laser beam passes through a dispersed particulate sample.
Laser diffraction has become one of the most commonly used particle sizing methods especially for particles in the range of 0 5 to 1000 microns.
978 0 521 04461 5 principles methods and application of particle size analysis.
The smaller the particle size the larger the angle of light scattering.
Particle sizing by laser diffraction.
