OCCHIO ZEPHYR ESR HEAVY DUTY PARTICLE CHARACTERIZATION SYSTEM
MEDIUM TO LARGE SAMPLES FOR GRANULAR AND BULK MATERIALS (LIQUID ACCESSORY OPTION AVAILABLE) DRY 30 micron to 30 mm / WET 30 micron to 1 mm
Occhio particle size and shape analyzers, are the collaboration of many years of focused research in the fields of optics, lighting, and digital imaging.
Common methods of particle size distribution analysis include laser diffraction, and sieve analysis, both of which are based on the assumption that the sample is comprised of spherical particles.
While these methods of gathering size distribution information generally provide usable results, they lack in accuracy, and application when compared with digital imaging technology, especially when particles are not round.
Fig 1.1 A monochromatic, collimated back-light acts like a caliper.
BY USING A PARAMETER CALLED MAXIMUM INSCRIBED DISC, NEAR PERFECT SIEVE CORRELATION IS NOW POSSIBLE, SINCE THIS EFFECTIVELY MEASURES THE WIDEST PART OF A PARTICLE, WHICH CONSEQUENTLY DETERMINES THE SIEVE APERTURE SIZE THE PARTICLE WOULD OR WOULD NOT FALL THROUGH. BECAUSE WE CANNOT TELL WHETHER A PARTICLE FALLS THROUGH A SIEVE APERTURE SQUARELY OR ON ITS' DIAGONAL, THERE WILL BE SOME VARIANCE.
ANALYZING THE PERFORMANCE ATTRIBUTES OF ABRASIVES, AND EXAMINING LENGTH AND WIDTH OF FIBERS, OR STRINGY PRODUCTS LIKE TOBACCO, AND SHREDDED CHEESE
PRIOR TO DIGITAL IMAGING THERE WAS NO GOOD WAY TO PERFORM QUALITY CONTROL TESTS ON LONG, STRINGY PARTICLES. SIEVE ANALYSIS IS ESSENTIALLY USELESS IN DETERMINING THE SIZE OF THESE CURVEY RUBBER SHREDS. OCCHIO IS ABLE TO EVEN MEASURE LENGTH OF CURVED PARTICLES.
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REPLACE SIEVE ANALYSIS- Unlike laser diffraction, digital imaging devices can actually correlate with, and replace sieve analysis.
STUDY PRODUCT FLOW PROPERTIES-Shape parameters like circularity, length, and width, provide valuable information in flow dynamics.
MEASURE PARTICLE ABRASIVE QUALITIES-The ESR can measure the shape of asperities on a particle, which correlate to abrasion performance.
VALIDATE / SUPPLEMENT LASER DIFFRACTION RESULTS
FINE AGGREGATE CHARACTERIZATION-Occhios' proprietary algorithm for measuring asperities, correlates with manual angularity measurements