Particle Size Distribution Measurement by the Laser Diffraction/Scattering Method Part3
Particle Size Distribution with Laser Diffracted/Scattered Light
Measuring Particle Size Distributions Using the Light Intensity Distribution Data of Diffracted/Scattered Light
The following shows four examples of light intensity distribution data and particle size distributions measured (calculated) using these data.
(The examples shown below were obtained using the SALD-2100. If a different model of instrument is used, the light intensity distribution data obtained by measuring even the same sample will be different.)
Example 1
![Light Intensity Distribution Data of Diffracted/Scattered Light](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrbj.gif)
Light Intensity Distribution Data of Diffracted/Scattered Light
![](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrbu.gif)
![Particle Size Distribution Data](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrc4.gif)
Particle Size Distribution Data
Example 2
![Light Intensity Distribution Data of Diffracted/Scattered Light](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrce.gif)
Light Intensity Distribution Data of Diffracted/Scattered Light
![](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrco.gif)
![Particle Size Distribution Data](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrcy.gif)
Particle Size Distribution Data
Example 3
![Light Intensity Distribution Data of Diffracted/Scattered Light](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrd8.gif)
Light Intensity Distribution Data of Diffracted/Scattered Light
![](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrdi.gif)
![Particle Size Distribution Data](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrds.gif)
Particle Size Distribution Data
Example 4
![Light Intensity Distribution Data of Diffracted/Scattered Light](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lre2.gif)
Light Intensity Distribution Data of Diffracted/Scattered Light
![](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrec.gif)
![Particle Size Distribution Data](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/powder/support/middle/qn5042000000kf7y-img/qn5042000000lrem.gif)
Particle Size Distribution Data
Thus, a particle group is irradiated with laser light and the particle size distribution is calculated from the light intensity distribution data of diffracted/scattered light emitted from that particle group. I hope that you could see this process. With diffracted/scattered light, it is the pattern that is important NOT its intensity.