optris Top-down GIS, Operator'S Manual

Page: 21 / 48

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Installation 21
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there is a small slot there, which allows a contactless temperature measurement. The glass is transported on
conveyor belts.
Figure 4 shows a classical glass tempering process.
Figure 4: Process of glass production
After leaving the furnace, the glass must be cooled down after a relatively short time. The annealing furnace
follows the heating furnace at a very short distance. Since glass is coated in most cases, a measurement from
below is necessary. On this side the glass is uncoated. The specially developed sensor CT G5 operates in the
5.0 µm wavelength range and is perfectly suited for this purpose. A thermal imaging camera is required to
display the individual glass sheets in a complete image. This is positioned at the top as shown in
Figure 4 . A