Grading Technology: Image Analysis of Pre-Graded Particles by FPIA-3000

Classification accuracy confirmation using the wet classification device S-100W-D: removal of coarse particles at the individual level; pre-measurement of experimental particles.

■ Preparation of image analysis samples: This sample uses spherical acrylic particles with a distribution center of 4 μm (ellipsoidal particles have poor accuracy). ■ To confirm the accuracy of the classification device, acrylic particles around Φ7 μm were added as trace experimental particles for classification accuracy verification. ■ The particle diameter used in the classification experiment is assumed to be 'coarse particles' if it is 5 μm or larger. The diameter of the mixed particles was analyzed using the FPIA-3000 device. ■ FPIA-3000 image analysis results: Confirmed coarse particles with a maximum diameter of 7.5 μm. Particles larger than 5 μm were confirmed at a mixing ratio of 8 out of 18,500 particles.

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