Research On The Platform Technology Of Photoelectric Stabilized With Heavy Loading

Photoelectric stabilized technology mainly supplies the reconnaissance and surveillance in theater, target capture and tracking, identification, distanced, control the delivery of precision-guided weapons and target instructions. In helicopters, fighter planes, ships, guides, ground vehicles and spacecraft are applied. At present, Photoelectric stabilized technology involved in the field of technology has become an increasingly widespread, the main function of the completion of more and more increasing accuracy, the system has become increasingly sophisticated. Corresponding, it is demand the accuracy, reliability, response time, network communications are all higher.At first, stabilized method and configuration of foreign photoelectric platform and development survey in the world are summarized in this paper, and then principal of angle movement of airplane which can be isolated by a two-axis-platform is analyzed theoretically. Requirements of stabilization platform to servo system are put forward. It provides the basis of theory for designing servo system.Two axis and four gimbals structure which are used in stabilized platform system are researched on in this paper, keep electro-optical system view axis stabilizing and tracking, the function of inner gimbals which support optical bench is to insulate vibrancy, avoid resistance,platform movement,running and so on; the function of outer gimbals is to keep inner gimbals independent of environment,avoid inner gimbals' extern disturb. The paper discuss inner and outer gimbals mathematic model, motor driver model, controller model, feedback model, establish stabilized platform system model, establish for stabilized platform designing foundation.Key technologies are researched in this paper, it involved stabilized platform, discuss the measure shaft , implement autotest and zero position auto calibration; joystick is platform man machine interface, convert volts signal to movement speed signal, the paper discuss handle joystick approach with compensate, nonlinearity processing, adjusting dead zone to match platform and sensor fov, and human machine efficacy well; Platform shaft measurement is mostly research content, the paper researches the out signal measure and data process of resolved, improve platform shaft output precision. And the active capture laser beaconing also was researched, all these key technologies research well support develop of platform.The platform realization, form and system index are discussed. And the study content and key technologies were validated on the stabilized platform, study result have applied on the. stabilized platform which was loaded the airplaneFinally the system design state is summed up by the extern examination.