Based on the principle of Dynamic Image Analysis (ISO 13322-2), the CAMSIZER X2 provides precise particle size and shape information of powders, granules and suspensions in a measuring range from 0.8 μm to 8 mm.
The CAMSIZER X2 produces a particle flow which is characterized by an optical system with high resolution. An ultrabright LED stroboscopic light sources and two high-resolution digital cameras achieve a frame rate of more than 300 images per second which are evaluated in real time by a powerful software. Thus, the CAMSIZER X2 captures the images of hundreds of thousands to several millions of particles with highest accuracy within only 1 to 3 minutes.
The CAMSIZER X2 provides a wide selection of particle information which allows for comprehensive and reliable characterization of the sample material. It is suitable for use in R&D as well as for routine tasks in quality control.
EXTREMELY WIDE MEASURING RANGE DUE TO DUAL CAMERA TECHNOLOGY
Microtrac MRB’s unique dual camera technology is a landmark in the development of Dynamic Image Analysis (DIA). By simultaneously employing two cameras with different magnifications, extremely wide dynamic measuring ranges are archieved. This is accomplished without hardware adjustments or modifications and without compromising accuracy. Each camera is specialized for one measuring range.
The ZOOM camera analyzes fine particles with highest precision whereas the BASIC camera detects the larger particles with excellent statistics. A special algorithm combines the information provided by both cameras and delivers the exact size distribution in a possible range of more than three decades!
This arrangement resolves a significant drawback of many image analysis systems that employ only one camera, e. g. microscopes. Such instruments either cannot correctly report the fine particles in wide size distributions, or the large particles are not captured due to the small field of view.
ONLY IMAGE ANALYSIS PROVIDES INFORMATION ON PARTICLE SHAPE
Bulk material properties like density, flowability, compactibility, conveying characteristics and surface condition are influenced by particle shape. This makes these parameters a crucial process and quality indicator in many application areas.
Various parameters are available for shape quantification. These include width/length ratio (aspect ratio), circularity (calculated from area-to-perimeter ratio), symmetry, convexity, and compactness. Roundness is calculated from the curvature of the particles’ corners.
„Size“ is only defined unambiguously for spherical particles: the diameter is identical in all directions and orientations. For non-spherical particles, however, the dimensions can vary strongly, depending on the orientation and direction of measurement. Traditional sieve analysis, for example, separates particles on a wire mesh sieve stack with different aperture sizes into fractions.
The smallest possible sieve aperture that a particle can pass is defined by the particle’s smallest projection area. Hence, sieve analysis measures particles in a preferential orientation and provides information which is mostly based on the width of the particle. Particle size analysis with Laser Diffraction (LD) relates all measuring data to the diameter of a spherical particle model. Only dynamic image analysis offers different size definitions which can be ascertained simultaneously. This makes the results comparable to those obtained with other techniques.
The outstanding strength of DIA is the possibility to measure width and length of a particle and to provide a size distribution based on these parameters. The particle width (red curve) can easily be compared to sieve analysis results.
|Measuring principle||Dynamic Image Analysis (ISO 13322-2)|
|Measuring range||0.8 µm to 8 mm
10 µm to 8 mm (gravity dispersion)
0.8 µm to 5 mm (air pressure dispersion)
0.8 µm to 1 mm (wet dispersion)
|Type of analysis||dry and wet analysis|
|Measuring time||~ 1 to 3 min (depends on desired measuring statistics)|
|Number of cameras||2|
|Sample volume||< 20 mg - 500 g (depends on sample type and measurement mode)|
|Measuring methods||> 300 images/s, each with approx. 4.2 MPixel|
|Width of analysis area||~ 20 x 20 mm|
|Resolution||0.8 µm per pixel|
|Measurement parameters||particle size (smallest diameter, length, mean diameter, etc.)
particle shape (aspect ration width to length, symmetry, sphericity, convexity etc., acc. to ISO 9276-6)
|Dimensions (W x H x D)||~ 850 x 580 x 570 mm|
|Weight (Measuring unit)||~ 50 kg|
|Operating unit||Quad Core PC incl. Windows 10, monitor, keyboard and mouse, network card, PC interface cards for hardware communication, evaluation software|