Using Sensor Systems To Inspect Flat Glass

Two new measuring stations supplied by precision sensor specialist Micro Epsilon are being used by Schott, to inspect the dimensional accuracy and edge quality of flat glass at the company's manufacturing plant in Jena, Germany. Dimensional accuracy is a critical factor in industrial glass. Even a small deviation from the required geometry of thickness of the glass can adversely affect the function of the glass at a later date. Technologies are now available to reliably and accurately inspect glass geometry (format, thickness sand evenness) and the surface quality. This article describes an inspection application that uses two optical methods to monitor the dimensional accuracy, geometry and edge quality of flat glass.