INSTALLATION FOR MEASURING THE TEMPERATURE OF THE RIBBON IN A FLAT GLASS ANNEALING LEHR, AND METHOD FOR OPERATING A LEHR

摘要

The invention relates to an installation for the continuous measurement of the surface temperature of a glass ribbon (G) in a flat glass lehr. Said installation comprises two sub-sets (D1, D2) which are respectively arranged either side of the glass ribbon (G), each sub-set (D1, D2) being flush with the surface of the glass ribbon, and an isothermal space being created around each each device for measuring the temperature (TC, TC2) of the ribbon by means of a thermal and optical insulator (3, 4).