Research On Precision Beam Deflecting Controller And Corresponding Detecting Device Based On DSP

Car-mounted,aircraft-carried and shipboard-based camera always interfered by the sailing jitter,mechanical vibration and atmospheric perturbations in moving photography,inducing image distortion and degradation,therefore the camera usually is need to be installed on the optically stable platform.The critical technology of the optical stabilization platform performance is the beam jitter and drift compensation technology.This method is accomplished by installing a direct optical path adjusting optical stabilization platform system,which eliminating the optical jitter by driving the universal biaxial motor-based lens to change the direction of the optical path,The characteristics of the system is fasting response,intuitive and reliable,the ability to simulate high-frequency vibration,and easy to use.In the research topic,firstly,analyzing the current research topics deflection technology and sophisticated detection equipment,determining the overall scheme of the system,and secondly decomposing all the system segments to precision mechanical system,servo control system and position detection system,and then do the design and research jobs.Finally an experimental prototype are assembled and adjusted for experimental studies on the performance of the system are tested and analyzed by experiment.In the research topic mainly discusses the deflection system composition,the system structure of precision machinery,implementation scheme of precision control system,and analyses the feasibility of the scheme,and latter,based on features of beam deflection system and the accuracy requirement,we design a high precision position detection system.The research topics of precision beam deflection control and corresponding testing equipment has high control precision,fasting response and so on.The maximum operating frequency of the system corresponding is up to 100HZ,the control precision can reach to lOurad angle precision.The position output rate of the position detection system can reach to 200 points/s,so it can quickly detect the real-time spot deflection.