Study on the influence of internal modulation parameters on the temperature calculation performance of matrix-searching CCD pyrometer

Abstract

Matrix-searching CCD temperature measurement technology can integrate the complex signal modulation process of CCD because of its forward solution of inverse problem. But in the existing research, there is still a lack of discussion on the temperature calculation ability of this technology in the internal modulation process. Therefore, the research on the influence of temperature calculation performance of matrix-searching CCD pyrometer is carried out. Based on the three-channel temperature equation and the radiation acquisition theory of the detector, the evaluation model of effective measurement range and temperature resolution is defined and constructed. Combined with the calibration experiment, the effects of gain and gamma internal modulation parameters on the effective temperature measurement range and temperature resolution are discussed. Through the analysis of the simulation results, the use and effects of the two internal modulation parameters are obtained, which not only improves the theoretical system of the matrix-seeking temperature measurement method, but also provides theoretical guidance for the parameter selection of the method under different conditions.