Improved optics detection system and incident light energy control analysis in PDT

Photoelectric detection target (PDT) mainly was applied to gain the information of flying projectile in shooting range, however, the traditional PDT cannot satisfy current need, it exists detection view small and sensitivity low. To solve those questions, an improved design method was put forward. In this paper, rectangle linked photoelectric detector with low noise and high response was used to design optics detection system in new PDT, and analyze design principle. Base on selected detector, adjustable active slit diaphragm was adopted to eliminate the influence of background light, and use self-adjusting mode to control slit window. Through experimentation in shooting range, it proves that the improved design technology can satisfy current test demand and reach the aim of improving detection sensitivity and augment detection view in PDT.