Manufactured By: Optical Control Systems GmbH

Pellet Size & Shape Analysis system PSSA

The PSSA from Optical Control systems, 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 separation principle 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 as well.

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 error map.

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

Scope of application
• Opaque Granules
• Coloured Granules
• Non transparent Granules
• Transparent Granules

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 the measured results in different formats: table with size groups, 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 …).