Design of a wide-range non-contact temperature measurement and control system for a 2.45 GHz microwave furnace

Summary form only given. The design of a pyrometric non-contact temperature measurement and control system for a 3 kW 2.45 GHz microwave processing furnace is presented. Design considerations specifically relevant to implementing non-contact temperature measurement and control over the wide range of 25 to 2500/spl deg/C are discussed. The completed system, in use as a research tool for microwave processing studies, provides versatile and contiguous control of sample heating from room temperature to the process temperature, with real-time access to parameters of the power control algorithm.