Frequency-Modulated Continuous-Wave (FM-CW) Radar for Evaluation of Refractory Structures Used in Glass Manufacturing Furnaces

A frequency-modulated continuous-wave (FM-CW) handheld radar operating in the frequency range of 8-18 GHz, resulting in a relatively fine range resolution was designed and constructed for on-site inspection of refractory structure thickness. This paper presents the design of the radar and the results of measurements conducted on typical refractory furnace structures assembled in the laboratory