Study On Key Technology Of Thermal Imager Zero Variation

Thermal imager is an important part of firearms, it gives the right for light weapons, so let the light weapons damage the enemy in the expected target in the night. Thermal imager zero variation is a one of the most important evaluation index in the thermal imager itself, which determines the targeting accuracy.The paper summarizes the zero variation principle, combined with CCD technology set of a universal thermal imager zero variation test method, it can able to fit a variety of thermal imager zero variation approval test requirements.The paper describes the form of thermal imager zero variation system installed and working principle, and detection system for in-depth study of key technologies. The middle plane mirror reflection of the opening of the Newtonian collimator axis infrared target simulation; Using DSP servo motor control to two-dimensional precision turntable technology; Application of CCD calibration method, the theodolite calibration method and the pentaprism calibration method, the final error analysis and its calculation.