In this study, a technique is developed to determine temperature profiles in hot glass melts, using intensity measurements performed at various wavelengths in the infrared spectrum. To that end, an analytical model is developed which describes the internal energy transfer in a glass layer and the spectral intensity emerging from the glass layer. The so calculated spectral intensity is confronted with a measure spectral intensity to reconstruct the temperature profile in the he glass layer. Because the temperature reconstruction from the measured spectral intensity is an ill-posed inverse problem, Tikhonov regularisation and the L-curve method are used to determine a meaningful temperature distribution in the he glass layer. In order to investigate the usefulness of the temperature reconstruction method an experimental setup is built.
