Speaker
Description
The design, development, and characterization of a silicon carbide (SiC) based high-temperature black body source at 600 ºC for Electron Cyclotron Emission (ECE) measurements have been done. The design has been optimized for higher emissivity performance in the 65–140 GHz frequency range using CST Microwave Studio. The innovative design features a pyramid-based structure incorporating a heater and emitter surface, integrated with an electrical control system. The improvement in emissivity with variation in pyramid slant angle was analyzed and shown. The design was refined to ensure surface temperature consistency within a range of ± 10 ºC and rapid heating, taking less than 60 minutes to reach 600 ºC from room temperature. The assembly of the heater and emitter is explained, highlighting the challenges faced. The heating procedure is discussed, ensuring optimal performance of the black body source. The PID-based electrical control system provides precise and stable control over the heating process, enhancing the overall reliability and accuracy of the measurements. Rigorous testing confirmed heating uniformity and swift heating times, validating the design's effectiveness. The developed black body calibration source was thermally characterized using an IR camera for different sets of temperatures, and the mean temperature distribution was determined is shown. The microwave characterization of the calibration source has been performed in the 60–220 GHz frequency range using a vector network analyzer (VNA), and the results will be presented. The developed calibration source is shown. The results highlight the synergy between advanced design methodologies and precise engineering, leading to the development of an efficient SiC-based black body source. This research work not only contributes significantly to the field of engineering but also paves the way for enhanced accuracy and reliability in ECE measurements.
