Model-based calibration of NASA CGF furnace

Abstract

Two novel approaches to calibration of high-temperature furnaces are presented. Both of these techniques use a high-fidelity model of heat transfer in the furnace and calibration cartridges to reduce the measured data and calculate the drift in furnace control thermocouples. The two calibration techniques and model-based data reduction are presented using the NASA crystal growth furnace (CGF) as the model furnace.