Pellet Size and Shape Analyser PSSA

Precise system for the granules shape and size analysis

The PSSA is a modular inspection system for the precise shape analysis of plastic granules. The pellets are separated on a vibrating surface and transported to the measurement zone. Images of the pellets are taken with a CCD-matrix-camera, which registers the variations of the dimensions. The high efficiency of this system is obtained through the movement of the material and good positioning, which enable an easy analysis of the pellets.The high precision measurement and effective separationprinciple enables the system to analyse up to 5 kg of granules per hour, depending on the size and bulk density of the material.

The use of a high resolution CCD matrix camera offers continuous reproducibility of the measured results. This instrument can analyse granules of different colours, transparency, etc.

The optimal adaptation in a laboratory setting as well as in an online measurement station, is a paramount factor in the quality control. This instrument offers a huge variety of customised configurations to fit perfectly the customer's needs and objectives. For example,installed in a bypass of the production line, this system will allow for a fast response to production problems.

The measured data are stored in a control protocol on the image processing computer to enable future analysis, and this data can be transferred to the control room. During the measurement process, the images and the stored data are displayed in real time on the monitor. The results can be shown in a table or in a graphic and can be printed aswell.

Not only can this instrument perform an exacting analysis of the granules, it can also be used for recording, archiving and documentation purposes. Each variation of the pellet's shape, size, elongation, roundness, roughness and convexity will be recorded in the measurement protocol on a multidimensional characteristics vector with an errormap.

With this tailor-made and sophisticated software package, this instrument will perfectly fulfill all your needs!

Characteristics and Performances

Modular architecture
Possibility of extension, easy adaptation and upgrade
Utilisation
Windows interface and easy customisation.
Optimal lighting techniques
Use of a special lighting technique to avoid colour related troubles during the pellet analysis.
Real-time image analysis
Fast evaluation, analysis and representation of themeasured results in different formats: table with sizegroups, time evolution mosaic view, histogram, distribution.
Table view
Results displayed in table according to the shape, size, diameter, elongation, roundness, roughness, and / or convexity.
Mosaic view
Continuous display in real pictures of the variations.
Graphic of the characteristics
Graphical display of the repartition by size, shape, elongation, diameter, etc.
Time evolution
Graphical display of the repartition of the characteristic according to the time evolution.
Process synchronisation
Interconnections between the inspection system and external instruments like MODBUS.
Interface for external applications
Alarm interface,digital balance...
Open database
The data from the protocol can be easily converted into all the common database format (MS Access, Excel ...).

Scope of application

Opaque Granules
Coloured Granules
Non transparent Granules
Transparent Granules