OCCHIO ZEPHYR LDA PARTICLE CHARACTERIZATION SYSTEM with COFFEE-TRAK

SMALL TO MEDIUM SAMPLES FOR DIFFICULT POWDERS AND LIGHT GRANULAR MATERIALS
EXAMPLES: FLOUR, GROUND COFFEE, RESIN, SUGAR
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 analysis include laser diffraction, and sieve analysis, both of which are based 
on the assumption that a sample is comprised of spherical particles. 

While these methods of gathering size distribution information, provide usable results, 
they lack in application, when compared with digital imaging technology.
Fig 1.1 A monochromatic, collimated back-light acts like a caliper. 
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INFORMATION REQUEST
OCCHIO ZEPHYR  LDA (LASER DIFFRACTION ALTERNATIVE)
SAMPLE TYPE:  LESS DENSE POWDERS AND   
                           GRANULARS THAT DISPERSE BETTER IN FLIGHT 
                           COHESIVE AND ELECTROSTATIC POWDERS
                           

ZEPHYR LDA     DRY 7 micron to 3 mm
                          WET 1 micron to 1 mm
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.
​FOR BETTER CORRELATION TO A PARTICLES ACTUAL MASS, A PARAMETER CALLED EQUIVALENT DISC DIAMETER IS EMPLOYED. THIS BASICALLY EQUATES TO COUNTING PIXELS, AND CORRELATES MORE CLOSELY TO LASER DIFFRACTION RESULTS.
INSCRIBED CIRCLES ARE USEFUL IN DETERMINING OTHER IMPORTANT CHARACTERISTICS, SUCH AS ABRASIVE PROPERTIES OF PARTICLES

THIS ACTUAL IMAGE OF AN ESPRESSO COFFEE GRIND, HELPS SHOW
HOW SIEVING MAY PROVIDE FALSE INFORMATION IN REGARDS TO SIZE.

WHAT SIZE SQUARE APERTURE WOULD LIKELY CAPTURE THE PARTICLE.? EVEN MORE SO, WOULD IT FALL THROUGH ON THE PERPENDICULAR OR THE HORIZONTAL?
Recent studies have shown that laser diffraction results may skew towards the smaller end.

Also compared with direct measurements, laser diffraction results for plates and rods are difficult to correlate.
Using a special proprietary light source, and high resolution optics, select Occhio Particle Analyzers, are able to detect even sub visible particles as small as 200 nanometers, in real time. Kinetic analysis of particle aggregation in  
WHAT ABOUT CORRELATION TO LASER DIFFRACTION?
AVAILABLE MEASUREMENT PARAMETERS

OCCHIO DIGITAL IMAGING THEORY
VIBRATING HOPPER / AIR JET / VACUUM DISPERSION

SAMPLE DISPERSION METHOD
 ZEPHYR LDA BROCHURE
NEW AIR JET DISPERSION
EVEN WORKS ON COHESIVE AND ELECTROSTATIC POWDERS, LIKE ESPRESSO COFFEE GRINDS, AND FLOUR
SMALL OR LARGE SAMPLES

DETECTION TO 7  MICRONS DRY,AND 1 MICRON WET
Notes
Copyright 2012: QAQC Lab | Particle Measurement System | All rights reserved.
866-244-1578 | support@occhio-usa.com
www.occhio-usa.com
BUY PARTS AND ACCESSORIES
DIGITAL IMAGING EQUIPMENT FOR PARTICLE CHARACTERIZATION IN LIQUIDS, POWDERS, AND SOLIDS
HOMECONTACT USPRODUCTS

OCCHIO DIGITAL IMAGE ANALYZERS HAVE THE ABILITY TO DETECT AND QUANTIFY BOTH PARTICLE SIZE AND PARTICLE SHAPE, PAVING THE WAY FOR THE ADVANCED ANALYSIS OF PARTICLES IN BOTH LIQUID AND SOLID FORMS.

CORRELATIONS TO OTHER PARTICLE SIZE ANALYSIS METHODS, LIKE SIEVE ANALYSIS AND LASER DIFFRACTION, ARE SEAMLESSLY EMPLOYED. EVEN SHAPE PARAMETERS LIKE LENGTH, FLATNESS, AND ANGULARITY IN AGGREGATES, OR THE LENGTH OF STRINGY PARTICLES LIKE SHREDDED CHEESE, OR TOBACCO, ARE POSSIBLE.

ONCE A BASIC CORRELATION HAS BEEN ESTABLISHED, THE RESULTS ARE FINE TUNED WITH THE OCCHIO CORRELATION PROGRAM, ALLOWING FOR TURNKEY SOLUTIONS TO PARTICLE CHARACTERIZATION.
500 NANO SERIES500 NANO500 NANO PHARMA500 NANO XYCOFFEEE-TRAKFLOWCELL SERIES
FC200 IPACFC200MFC200SCMPSLURRYFC200SHRMORPHO 3-DPHARMA SCANNER
SIEVECALZEPHYR SERIESZEPHYR ESRZEPHYR LDAZEPHYR LDA COFFEE-TRAK

DIGITAL IMAGE ANALYZERS
DOWNLOADS
DIGITAL  PARTICLE
CHARACTERIZATION THEORY
EFFECTS OF DIGITIZATION
ON PARTICLE CHARACTERIZATION
AVAILABLE SIZE AND 
SHAPE PARAMETERS
SAMPLE 
CHARACTERISTICS

DISPERSION METHODS DESIGNED TO MAINTAIN PARTICLE INTEGRITY
GRANULAR MATERIALS, 
POWDERS, LIQUIDS

DRY GRANULAR MATERIALS 
SIZE RANGE 500 µm – 10,000 µm
EXAMPLES TABLETS, SEEDS, BEADS
3 DIMENSIONAL ANALYSIS 
DISPERSION METHOD
FEEDING HOPPER & CONVEYOR BELT
DRY POWDERS & GRANULARS
THAT TRAVEL WELL IN FLIGHT
7 µm – 5,000 µm 
EXAMPLES SUGAR / COFFEE / SAND
DISPERSION METHOD 
VIBRATING HOPPER WITH
HORIZONTAL VACUUM DISPERSION
 (FASTER ANALYSIS TIME)
LIQUID ANALYSIS FLOWCELL ACCESSORY
PARTICLES SUSPENDED IN LIQUID 1 µm – 3,000 µm
DRY GRANULARS HEAVIER PARTICLES 
30 µm – 30,000 µm
GRAVEL, WOOD CHIPS, SAND
COFFEE BEANS & GRINDS
DISPERSION METHOD
VIBRATING HOPPER WITH
VERTICAL DISPERSION (VACUUM ASSIST FOR DUST REMMOVAL)
LIQUID ANALYSIS FLOWCELL ACCESSORY
PARTICLES SUSPENDED IN LIQUID
30 µm – 1,000 µm 
FINE POWDERS
DRY 0.2 µm – 2,000 µm 
PHARMACEUTICALS, CHEMICALS
STATIC ANALYSIS
DISPERSION METHOD
PATENTED VACUUM IMPLOSION
LIQUID ANALYSIS FLOWCELL ACCESSORY
PARTICLES SUSPENDED IN LIQUID
.8 µm – 300 µm
DEDICATED LIQUID ANALYSIS
PARTICLES SUSPENDED IN LIQUID

​PARTICLES SUSPENDED IN LIQUID
0.8 µm-800 µm
DISPERSION METHOD
MEMBRANE PUMP (FOR PARTICLES SUBJECT 
TO BREAKAGE) 
PERILSTATIC PUMP (>500 µm)
PARTICLES SUSPENDED IN LIQUID
0.2 µm / 0.4 µm -1,000 µm
PROTEIN AGGREGATES
DISPERSION METHOD
SYRINGE PUMP
PARTICLES SUSPENDED IN LIQUID
SLURRIES
0.2 µm- 500 µm
DISPERSION METHOD
SYRINGE PUMP
SPECIAL DEDICATED 
APPLICATIONS
LABORATORY TEST SIEVE CALIBRATOR
CALIBRATE TEST SIEVES IN HOUSE.
2 MINUTES PER SIEVE.FULL INSPECTION / COMPLIANCE REPORT
PARTICLES IN LIQUIDS IN SITU
ANALYZE FIBERS, TEXTURES, AND PARTICLES INSIDE CONTAINERS
CLICK IMAGE FOR PRODUCT DEMONSTRATION