Automated Imaging

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Most particle size measurement technology methods are based on the assumption of spherical shaped particles. This hypothesis leads to significant errors in the analysis if the particles are flake or rod-shaped. Especially for such highly form-anisotropic particles, automated imaging provides an excellent alternative for the determination of tailor-made size specifications.

Automated imaging methods for the determination of the particle size distribution of a material offers a fundamental advantage over alternative methods such as static light scattering, sedimentation or sieving: Each particle is photographed individually! This results in several important advantages for the determination of the particle size distribution:

Realistic proportional values also at the edges of the size distribution, i. e. detection of oversized particles or fine particles

Visual assessment of the dispersing state of a sample (dispersing quality, presence of agglomerates)

Calculation of meaningful size parameters, e. g. geodetic length or Feret diameter for fibres, depending on the application

Selection of the appropriate distribution type (volume, number) depending on the particular task

In addition, the individual photography of the particles gives the opportunity to make statistical calculations on the particle shape, which in practice enables further differentiation of materials. For example, form anisotropy, the deviation of the particles from the ideal sphere, often plays a decisive role for their application and further processing – for example, the conveyance or compaction of powders, the influence on the rheology in dispersions or, in addition to the particle size distribution, the roughness of the particle surface plays an important role for the success of shaping or polishing.

The necessity for tailor-made particle size and shape parameters, combined with ever-increasing PC processing power, ensures that automated imaging methods are becoming increasingly more relevant to a market which is 95% non-spherical..

BeVision D2

Particle size and particle shape:

Dry: 30µm to 10000µm

Bettersizer S3 Plus

Particle size: 0.01 to 3500μm

Particle shape: 2 to 3500μm

Bettersizer S3

Particle size: 0.01 to 3500μm

Particle shape: 100 to 3500μm

BeVision M1

Particle size and particle shape:

1 to 10,000µm

At Bettersize, our mission is to provide best-in-class particle sizing and characterization instruments, comprehensive solutions and exceptional customer services. We provide particle size instrument, dynamic imaging particle analysis, imaging particle analysis, particle size measurement techniques, image particle analysis, laser particle size analyzerand etc. Want to know more? Please contact us.

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