Equipment calibration and analysis of influencing factors of infrared detection

The calibration method of the thermal imager based on the measurement principle of infrared radiation temperature is researched in this paper, and combined with the actual example of the direct expansion black body source method that calibrate the radiance of the target source and gray value of thermal images. In addition, two important impact factors of characteristic of infrared radiation, Infrared emissivity of the target source and the infrared radiation atmospheric transmittance, are analyzed and solved in this paper. This result has important significance for solving the target source of infrared radiation temperature.