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جستجوهای مرتبط
QICPIC: Particle Shape and Particle Size
With QICPIC, Sympatec has established an image analysis sensor that
combines particle size and shape analysis. This innovative technique
with extremely short exposure time of less than 1 ns allows for the use
of efficient and reliable dispersion units providing clear cut images
even from fastest particles with a speed of up to 100 m/s. This allows
for the application of adequate energy to create a proper dispersion of
agglomerated fine and cohesive powders.
Disperser and dosing units – modular diversity (application ranges)
- RODOS – injection disperser for finest, even cohesive dry powders (5 to 4,000 µm)
- GRADIS – gravity disperser for coarser, even fragile dry particulate systems (5 to 30,720 µm)
- OASIS – combined dry and wet disperser, consisting of RODOS (see above) and SUCELL for emulsions and suspensions (2 to 2,000 µm)
- LIXELL – wet disperser for emulsions and suspensions (1 to 2,000 µm; with special flow-through cuvette also available for applications from 20 to 10,000 µm (e.g., pulp))
- MIXCEL – modular wet disperser for emulsions and suspensions (1 to 3,000 µm)
- FIBROS – pre-disperser for gentle separation and feeding of dry, even curly fibres (fibre thickness 5 to 5,000 µm, fibre length 500 to 30.720 µm; in combination with GRADIS)
- VIBRI – vibratory feeder for precise dosing and feeding of dry particulate systems (in combination with RODOS, GRADIS or OASIS)
- ASPIROS – micro dosing system for feeding of small amounts of precious or toxic substances in encapsulated sample vials (in combination with RODOS or OASIS)
QICPIC determines particle sizes between 1 µm and 30 mm. The raw measurement data is stored in 100,000 primary classes and can be evaluated in individually specified formats. Pre-defined sets of size classes allow for an easy adoption to existing measurement specifications. A high performance data compression module supports the acquisition of up to 450 images per second. This ensures measurement results at a very high confidence level with just a minimum of time required for analysis. The WINDOX software offers simultaneous calculations of different size and shape characteristics. A particle gallery in combination with multiple filter functions supports the evaluation of the products, even if very large amounts of 10 million particles or more are recorded.
QICPIC fulfils the security requirements of the FDA and is compliant with 21 CFR Rule 11.
QICPIC Highlights
- Particle size and shape analysis from 1 µm to 30 mm.
- Adoptable to the application / product thanks to modular instrument set-up and a diverse range of dispersing systems.
- Efficient dispersion instead of software-based particle elimination or correction.
- Quasi-static image analysis in a high speed particle stream.
- Clear outline of particles, independent of the position in the measuring zone.
- Definite borders of particles, black outline, transparent particles are measurable.
- Very low statistical errors due to very high particle numbers.
- User defined class limits out of 100,000 primary size classes, free definition of sampling points, pre-defined sets of size classes are shipped with the software (e.g. HELOS classes, sieve classes, etc.)
- A large number of evaluation modes is available,
- Compliant with 21 CFR Rule 11 (FDA).
Evaluation modes may be varied even after the measurement:
- Particle size: based on equivalent projected circle area, Feret diameters, etc.
- Particle shape: sphericity, aspect ratio and convexity
- Fibre evaluation: fibre length, fibre diameter, straightness, and elongation even of complex structures.
- Particle gallery: displays and prints a user defined selection of particles along with definable characteristic data
- User specific evaluation: performs the evaluation of particle size and shape only on particles matching user defined filter conditions.
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