Infrared camera inspection system GIS 640i G7 series

measurementglass surfacefor the glass industry

Low-emissivity (Low-E) glass, commonly used for windows and facade components to enhance energy efficiency in buildings, poses significant challenges for traditional infrared (IR) devices. This type of glass is designed as multi-pane insulating glass with a coated side that has very low emissivity. Infrared devices traditionally measure the glass temperature from above as the panes exit the furnace. However, due to the low emissivity of the coated side, these devices often struggle to obtain accurate temperature readings, leading to inefficiencies and potential quality issues in the production process. The Bottom-Up Glass Inspection System (GIS) from Optris introduces an innovative solution to this challenge. By installing multiple infrared imagers underneath the tempering line, the system can consistently measure the temperature on the non-coated, high-emissivity side of the glass. This approach ensures accurate temperature readings, which are crucial for maintaining the glass’s quality. Recent advancements in IR technology have facilitated the development of more compact, uncooled imagers suitable for this tight installation. Previously, such installations were not feasible with the bulky line scanners traditionally used in the industry above the production line. The compact design and small accessories of these new imagers allow for an innovative bottom-up package that significantly improves the accuracy and reliability of temperature measurements of glass. The Optris infrared cameras, PI 450i G7 and PI 640i G7, are industry-specific models within the PI series, developed specifically for the glass industry.