Contamination » Glass contamination

GLASS CONTAMINATION -
GLASS IN GLASS DETECTION

Glass contamination constitutes a major problem in the production of food products packaged in glass jars, glass bottles, and glass containers. Glass contamination in the form of glass fragments or glass splinters may have very serious consequences.

X-ray technology has been used for years for the inspection of filled glass packaging with food products. Our new and innovative X-ray systems push the detection level to the real need – to detect what is critical for the consumer.

X-ray inspection of glass – glass contamination detection 5

THE VALUE OF LOW-ENERGY X-RAY TECHNOLOGY:

  • reducing loss and making best use of raw materials
  • better product classification and a better product price
  • avoiding customer complaints
  • a robust, reliable, and safe inspection technology
  • hygienic design guidelines

The high contrast, high-resolution imaging in the Royal Awarded InnospeXion glass-in-glass detection system is integrated with a novel, fast, very robust and reliable automatic glass splinter detection algorithm. This enables even the tiniest glass fragments to be detected, even when placed
next to the glass wall.

The problem is, that the normal X-ray technology is inadequate for the revelation of critical glass contamination with glass fragments or splinters. This is due to the fact that the contrast between the glass pieces and the product inside the glass jar has to be relatively large in order for automated image analysis algorithms to detect and correctly reject a faulty product. In addition, the resolution of the image acquisition sensor has to be high in order for as many pixels as possible to represent a defect.

Unfortunately, high resolution and high contrast are in contradiction. High resolution implies small pixels, and hence a small “count number” due to a very small detection area. This makes noise be relatively high compared to a (small) “count” difference between a defect and a neighbor area without a defect.

GLASS DETECTION -
ADDITIONAL READING

Danish Food Tech Group Member Food packaging integrity
Danish Export Association
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