EuroWire May 2018

Technology News

Sikora launches optical offline inspection and analysis

PURITY Concept V (Visual) from Sikora is an innovative offline system for optical inspection and analysis of transparent and coloured plastic pellets by means of an intelligent light table. The material to be tested moves automatically through the system and contamination such as black specks are visualised. The system is suitable for sample testing of produced material or for incoming goods inspection. Until now, sample testing of pellets has been carried out mainly by means of light tables. The material to be tested was optically illuminated on a table and manually inspected by the operator. This method is dependent on the examiner and provides a limited repeatability. Additional limitations are the size of the contamination seen by the human eye as well as the classification by size. Alternative optical offline inspection devices feed the test material into a hopper and through a channel into the inspection area. Thereby, images are recorded successively and contaminated material is removed. Due to the blending of the removed material, a clear allocation of the contamination to the graphic material as well as a follow-up inspection are impossible. Purity Concept V contains the advantages of a light table, complemented by automatic offline material control. The intelligent system moves the test material on a tray through the inspection area. Within seconds, the material is inspected

▲ ▲ Purity Concept V for automatic optical inspection of plastic material

automatically by the colour camera and contaminated material is marked directly on the sample tray by a beamer. By analysing the recorded images, contamination on the surface of transparent and coloured material are detected automatically, visualised and

evaluated. A clear allocation of the contamination and follow-up inspection are possible at any time. Thus, the system contributes to quality control and process optimisation.

Sikora AG – Germany Website : www.sikora.net

Helping meet standards for weights and measurement

Proton Products has introduced a new service for customers of its InteliSENS SL and SLR non-contact laser doppler speed and length measurement sensors. Proton recognises that many its customers need independent verification and certification of their InteliSENS speed and length sensors to meet either local or national inspection standards. In response, Proton has introduced its new speed and length verification table. This uses a motor-driven, precision-machined calibration wheel rotating at a regulated speed with a run length of at least 10,000m to verify the accuracy of the customer’s sensor. The laser beams from the test gauge create a doppler frequency pattern on the tangential surface of a calibration wheel that is used to measure its speed and cumulative run length. Gauge readings are compared against calibration reference values. This unit conforms to UKAS certified equipment standards and test procedures and can verify the calibration of Proton’s InteliSENS sensors to within 0.02 per cent.

▲ ▲ A new service from Proton Products

The sensor will be returned the following day with a certificate associated with its unique serial number as proof of accuracy.

Proton Products – USA Website : www.protonproducts.com

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May 2018