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This page was last updated: January 20, 2012
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PROFESSIONAL LABORATORY INSTRUMENTATION FOR COFFEE, TEA, COCOA AND AGRICULTURE
www.coffeelabequipment.com
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IN LAB OR ONLINE AUTOMATION IN PARTICLE SIZING, PARTICLE COUNTING, DISSOLVED SOLIDS TESTING
                                                                          PRESENTATION AND VIDEO
MEASURABLE PARAMETERS

Area Diameter
Mean Diameter
Inner Diameter
Width
Length
Max Distance

Bluntness: define as the maturity of the particle in an abrasion process

Satelity: defined as the proportion of the particle to be removed in order to have a smooth shape.

Elongation: defined as 1 minus the ratio of inertia box axes.

Convexity: defined as the ratio between the area of the particle and the area of the smallest convex shape that contains the particle

Circularity: defined as the ratio between the equivalent disc perimeter and the particle perimeter.

Lum Mean: defined as mean grey level value of the particle.

The Zephyr digital particle image analyzer, represents a true breakthrough in particle characterization analysis.

Recent innovations, backed by years of research conducted in cooperation with the University De Liege, in Belgium, have solved some most of the complex problems, in particle transport, presentation, and characterization.

Using a combination of a programmable vibrating feeder, and a vacuum dispersion system, powders and solids are moved effortlessly past the telecentric lens of a powerful camera, and analyzed in real time.

Image boundaries are enhanced by flashing a monochromatic (single hue) collimated (parrallel beam) light source from behind the sample.




Compared to batch analysis of coffee grinds, using laser diffraction, where alll particles are assumed to be spherical, and only the diameter of the particle, is measured, the OCCHIO ZEPHYR, provides online, comprehensive, particle characteristic analysis, with a long list of analytical parameters.
FIG 1.3 Collimated light beams act as a caliper
FIG 1.1
FIG 1.2
Specially engineered vacuum disperser, draws
particle stream past the high speed lens.
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