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Inspection of Glass Ribbon / Float Glass

Schenk's GlassInspect.float is a solution developed for the quality assurance and process control of float glass lines in both the architectural and automotive industries. In order to guarantee a constant supply of high quality float glass, the material is inspected for glass defects that endanger a high yield.

The GlassInspect.float system for float and rolled glass is easily integrated into production lines. The innovative illumination and camera concept, as well as enhanced defect classification, have been optimized for the special requirements of the inspection of continuous glass material.


Higher Yield through an Innovative Illumination Concept

In close cooperation with business partners and customers, Schenk has developed an enhanced defect classification method for float glass. Schenk's GlassInspect.float allows manufacturers to reliably distinguish between problematic defects, such as bubbles and stones, from “pseudo defects”.

In order to make this distinction, Dr. Schenk makes use of the characteristics of defects versus contaminations. Whereas the optical signal of a non critical contamination consists of its pure core size, a real glass defect occurs with a much larger deflecting image. Core and deflection can be analyzed reliably by the innovative combination of two illuminations.

Furthermore, by this innovative optical concept the size of a defect can be evaluated with highest accuracy. Thus, the boundary between critical defects and non-critical defects can be set with an unreached precision.

A number of float glass manufacturers in Europe and Asia have therefore chosen inspection solutions from Dr. Schenk and could maximize their yield.

Benefits at a Glance

  • Dual image technology combining 2 different illumination concepts for reliable differentiation between relevant glass defects and non-critical contaminations
  • High resolution 2D images of core and deflection size
  • Accurate size determination of glass defects
  • Defect classification optimized for float glass application
  • Easy and optimized integration into production lines
  • Innovative modular concept combining high resolution CCD Line Scan cameras and high performance LED illumination units
  • Analyzing and processing software for fast reaction on process deviations
  • Intuitive visualization software according to SEMI standards