Low-emissivity (Low-E) glass, enhancing building energy efficiency, challenges traditional IR devices measuring temperature from above. The Top-Down Glass Inspection System (GIS) solves this by using high-resolution infrared cameras above the tempering line and a reference pyrometer below for emissivity correction. This dual approach ensures accurate temperature measurements, detects defects, and adjusts heating or cooling based on temperature distribution. The system employs Optris PI 640i G7 cameras, designed for the glass industry, with a spectral response of 7.9 μm and a temperature range of 150 °C to 1500 °C. Pre-assembled for easy installation, it connects to a PC via Ethernet and includes license-free PIX Connect software for flexible and comprehensive IR imaging.
- Top-down system with additional reference pyrometer from below for automatic emissivity correction
- Digitally controlled lens protection system (DCLP) avoids extra air purging
- Glass area calculation
- Pre-assembled system for easy installation on glass tempering furnaces
- Automatic scan line adjustment – insensitive to distortions