Research On The Key Technology Of The Same-aperture Pulsed Laser Detection System

Because of the volume of conventional ammunition limited,miniaturization is the development trend of pulse laser fuze.Based on the background of miniaturization,a pulse laser detection system with the same aperture for receiving and receiving is proposed.The system integrates the transmitting system and receiving system.In view of the existing problems in the research process,the following studies have been done:The principle of pulse laser detection system and the analysis of relevant circuits are briefly described.Summarizing the principle of pulse laser detection system and the design of related circuits,the design of common optical axis structure and optical path are adopted.Not only were the optical field distribution characteristics of the laser analyzed,but the laser collimation model was established and the laser collimation simulation was performed by ZEMAX software.Simulating and analyzing the stress change of the system under emission overload by ANSYS,it is briefly described that the effect of the deformation of optical element on optical properties under overload excitation.Aiming at the electromagnetic interference caused by the miniaturization of the transceiver pulse laser detection system,there are the reasons of electromagnetic interference analyzed theoretically.Addition to simulating electromagnetic radiation and conduction radiation,some effective suggestions are put forward to restrain electromagnetic interference.Discussing the optical interference,the model has been established.Studying the influence of convex lens and semi-lens parameters on optical interference through theoretical calculation and simulation.Based on two aspects of optics and circuit,it was analyzed that the influencing factors of optical interference and the limiting conditions of detection frequency and detection distance.Finally,the experimental results demonstrate the performance of the same aperture pulse laser detection system.