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BT-Online1
#particle #size #analysis #of #nanoparticles
Online Particle Size Analyzer
BT-Online1 Online Particle Size Analyzer is an on-line particle size monitoring system for real-time particle size monitoring and control in powder manufacturing... moreBT-Online1
#particle #size #analysis #of #nanoparticles
Online Particle Size Analyzer
BT-Online1 Online Particle Size Analyzer is an on-line particle size monitoring system for real-time particle size monitoring and control in powder manufacturing industries. Driven by Standard Operation Procedure (SOP), it automatically samples, measures, recovers and processes data directly from the powder delivery pipeline, providing 24-hour particle size detection and control for a variety of dry powder production lines.
Measurement: Particle size
Particle size range: 0.1 to 1000µm
Dispersion type: Dry
Technology: Laser diffraction
Overview
FeaturesPerformanceTechnologySpecificationInquiry
Features and Benefits
Measuring range: 0.1 - 1000 µm
Repeatability: ≤3% (GBRM D50)
Accuracy: ≤3% (GBRM D50)
SOP: Standard Operation Procedure
Detectors: 68 pieces
Test speed: ≤1 min
High-performance semiconductor laser with long lifespan
Automatic Alignment
Automatic Centering
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Bettersizer ST
#laser #scattering #particle #size #distribution #analyzer
Laser Particle Size Analyzer, Laser Granulometry
Bettersizer ST laser scattering particle size distribution analyzer includes the patented Dual Lens Optical System (DLOS) which... moreBettersizer ST
#laser #scattering #particle #size #distribution #analyzer
Laser Particle Size Analyzer, Laser Granulometry
Bettersizer ST laser scattering particle size distribution analyzer includes the patented Dual Lens Optical System (DLOS) which provides a compact design without resorting to folding optics that are susceptible to misalignment caused by vibrations often present in most industrial labs.
The ST Laser Granulometry incorporates 86 high-speed detectors, which produces the high-resolution data from 0.1 to 1000 microns. This high-speed detector system delivers fast results, often in as little as 15 seconds.
Measurement: Particle size
Particle size range: 0.1 to 1000µm
Dispersion type: Wet
Technology: Laser diffraction
Overview
FeaturesTechnologySpecificationInquiry
Features and Benefits
•Dual Lens Optical System (DLOS):
The Dual Lens Optical System (DLOS) is a technical innovation developed by Bettersize. It detects both the forward and backscatter laser diffraction pattern. This breakthrough technology results in increased particle size measurement range without the added cost of a second light source. This single laser design provides for higher accuracy due to a consistent wavelength throughout the full measurement range.
•Standard Operation Procedure (SOP):
The Bettersize software offers an intuitive user interface. The "Auto Test" function fully automates the entire test sequence. With one mouse click, “Auto Test” initiates auto-alignment, collects a background, prompts the operator to add sample and analyzes the sample.
•Compact design:
The rugged and compact design, coupled with the low cost of ownership of the Bettersizer ST makes it the ideal laser particle size analyzer for your quality control applications.
•Auto Alignment Function:
The auto alignment function of Bettersize ST laser scattering particle size distribution analyzer provides accurate and repeatable testing results. The high speed servo motors allow the Bettersize ST laser diffraction grain size analyzer to perform an auto alignment prior to every test.
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Bettersizer 2600
#particle #size #instrument
Laser Particle Size Analyzer (Dry & Wet Dispersions)
The integrated and robust laser particle size analyzer, Bettersizer 2600, can deliver reliable particle size measurement results from submicron to... moreBettersizer 2600
#particle #size #instrument
Laser Particle Size Analyzer (Dry & Wet Dispersions)
The integrated and robust laser particle size analyzer, Bettersizer 2600, can deliver reliable particle size measurement results from submicron to millimeter. Driven by the innovative optical system and Standard Operation Procedure (SOP), the Bettersizer 2600 wet and dry particle size analyzer strikes a harmonious balance between high-functionality, easy operation, low maintenance, and cost-effectiveness.
Measurement: Particle size
Particle size range:
Wet dispersion: 0.02 to 2600μm
Dry dispersion: 0.1 to 2600μm
Dispersion type: Wet and Dry
Technology: Laser diffraction
Precise measurement of both large and small particles covering the broadest range by a new patented technology utilizing both Fourier and Reverse Fourier optical systems
Optical bench with 92 detectors covering an angular range of 0.016° - 165°
Optional wet and/or dry dispersion
Small volume dry dispersing module for small sample quantities especially for pharmaceutical or valuable samples in short supply
Easy and fast to changeover between dispersing modules
Easy to implement, create and use Standard Operation Procedures for new materials
Automatic alignment of the optical system
User-friendly software, easily learnt
Overview
FeaturesPerformanceTechnologySpecificationInquiry
1）Fourier and Reverse Fourier optical system
Bettersizer 2600 particle size tester is characterized in particular by its unique and innovative optical bench design: the light focused on the detectors through the lens is scattered by particles and detected in both forward and lateral directions (Inverse Fourier structure). In contrast to conventional laser diffraction devices, the backscattered light passes through the lens a second time. In addition, the cuvette is positioned at an angle of 35° to the incoming laser light.
This smart setup allows, on the one hand, the detection of scattered light in a very wide angular range from 0.016° to 165°. On the other hand, in contrast to a pure Inverse Fourier structure, the particles do not have to lie in one plane – the simultaneous exact measurement of small and large particles is therefore achieved.
Fourier and Reverse Fourier optical system
2）INTUITIVE AND POWERFUL SOFTWARE
Simple operation and a clear intuitive interface
Real-time mode for determining the optimal measurement conditions
Simple to use SOP operation
Fully automated measurement routine with automatic calibration
Automatic data backup and editable reports
Accurate analysis achieved by appropriate use of either the Fraunhofer or Mie evaluation models dependent on sample size and sample type
Automatic cleaning routine
Conversion from wet to dry dispersion at the touch of a button
3）WET DISPERSION
Laser diffraction method conforming to ISO 13320
In a wet measurement, the particles are dispersed in a liquid medium in the dispersing module, additional dispersion may be performed by an ultrasonic disperser.
Various external modules are also available to achieve this purpose:
BT-802 – is a fully automatic standard dispersing module with integrated ultrasound and centrifugal pump for sample circulation with a volume of 600 ml. It is suitable for large sample sizes for materials that can be dispersed in water or alcohol.
BT-800N – is a dispersing module with medium volume (approx. 250ml) with ultrasound and centrifugal pump; suitable for non-polar solvents such as heptane, toluene and oil.
WET DISPERSION
4）DRY DISPERSION
Dry dispersion is used when dry powders or granules are to be measured without the use of solvent. During sample preparation, the sample is pre-dispersed by a vibrating transmission channel, it falls into a channel and is transported by compressed air (venturi nozzle) through to the horizontal measuring cell. Dispersion is carried out by particle collisions with the wall of the container and particleparticle shear.
Switching dispersion modules is easy. Simply remove one module and replace it using its handle. Dry dispersion is also possible with a variety of external modules:
BT-902 – this is an automatic standard dry dispersing module with a particle conveying channel with adjustable conveying rate; adjustable dispersion pressure (up to max. 5 bar) enable it to be suitable for all powders and granules whether they be cohesive or free flowing.
BT-903 – is an automatic dry dispersing module for small sample sizes of powders; ideal for powders in research or pharmaceutical applications. 20 mg to 1 g sample sizes.
https://www.bettersizeinstruments.com/products/bettersizer-2600-laser-particle-size-analyzer/ less
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Automated Imaging
#dynamic #imaging #particle #analysis
Most particle size measurement technology methods are based on the assumption of spherical shaped particles. This hypothesis leads to significant errors in the analysis if the particles are flake... moreAutomated Imaging
#dynamic #imaging #particle #analysis
Most particle size measurement technology methods are based on the assumption of spherical shaped particles. This hypothesis leads to significant errors in the analysis if the particles are flake or rod-shaped. Especially for such highly form-anisotropic particles, automated imaging provides an excellent alternative for the determination of tailor-made size specifications.
Automated imaging methods for the determination of the particle size distribution of a material offers a fundamental advantage over alternative methods such as static light scattering, sedimentation or sieving: Each particle is photographed individually! This results in several important advantages for the determination of the particle size distribution:
Realistic proportional values also at the edges of the size distribution, i. e. detection of oversized particles or fine particles
Visual assessment of the dispersing state of a sample (dispersing quality, presence of agglomerates)
Calculation of meaningful size parameters, e. g. geodetic length or Feret diameter for fibres, depending on the application
Selection of the appropriate distribution type (volume, number) depending on the particular task
In addition, the individual photography of the particles gives the opportunity to make statistical calculations on the particle shape, which in practice enables further differentiation of materials. For example, form anisotropy, the deviation of the particles from the ideal sphere, often plays a decisive role for their application and further processing – for example, the conveyance or compaction of powders, the influence on the rheology in dispersions or, in addition to the particle size distribution, the roughness of the particle surface plays an important role for the success of shaping or polishing.
The necessity for tailor-made particle size and shape parameters, combined with ever-increasing PC processing power, ensures that automated imaging methods are becoming increasingly more relevant to a market which is 95% non-spherical..
The image taking is ensured by special digital cameras, if necessary in combination to a microscope, to enlarge the particles. The particles may be present neutral (e.g. on an objective) or in motion as well. The dispersing (separation) of particles is possible both in dry-mode (e.g. by simple conveying and riddling or by the usage of compressed air) but also in wet-mode in a solvent. An absolutely basic requirement to perform a successful particle shape analysis is high resolution, image sharpness, good sample dispersing resulting in measurement of individual particles and suitable enlargement. More explanation of this expression required etc. Image processing by appropriate software leads to upgraded pictures: for example isolated pixels and edging particles are eliminated, variations in brightness and signal noise are retouched and agglomerated particles are separated. The main part in object detection is image binarization, whereby every image pixel is assigned to a particle (black) or the background (white) using a threshold. The recognition of objects (particles) and feature attribution is realized by the software. In the last step, the classification, the particles are arranged in classes (e.g. size equivalent classes) on the basis of their attributed features (size and shape parameters).
Numerous size and shape parameters can be determined from the particles images by the appropriate software. Important size parameters are for example (CE) equivalent disc diameter Deq, maximum inscribed disc diameter Din, fiber length XLG (geodesic length) and fiber diameter XFD.
The equivalent disc diameter corresponds to the disc diameter of identical area to 2-D-projected particles, which is often used as size indicator for irregular shaped particles in process technology. On the contrary the maximum inscribed disc diameter of the 2-D-projected particle corresponds more or less to the sieve diameter. The geodesic length and the fiber diameter are suited very well for the characterization of fibers.
Important size parameters automated imaging
There are numerous and very application-specific shape parameters. The aim is to get extra morphological parameters in addition to particle size, whereby the particle characteristics can be better or basically described. Examples are “aspect ratio AD”, the ratio of length to width of the particles, “circularity ZK”, an indicator for particle deviation from the ideal circle and “concavity index C”, which reflects the ratio of area difference of convex envelope and area of the particle to convex envelope. Another important shape parameter is “perimeter”, which displays the particle coverage.
Important shape parameters automated imaging
Literature and norms
/1/ ISO 13322-2: Particle size analysis – Image analysis methods – Part 2: Dynamic image analysis methods
/2/ ISO 9276-6 Representation of results of particle size analysis – Part 6: Descriptive and quantitative representation of particle shape and morphology
A detailed description of particle shape can be found HERE.
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