| Jet pipe servo valve because of strong anti pollution ability,easy maintenance,small abrasion of the pilot stage,the high efficiency of the pilot stage,high resolution,low pressure air supply is stable,torque motor structure specific,is widely used in various fields.Pneumatic jet pipe servo valve is a common electro pneumatic servo valve,electro pneumatic servo valve is the electrical signals into pressure signals and has a fast dynamic response,high precision,good linearity,control signal small advantages,servo control of one of the core elements of the system,as a kind of high performance and high precision control of parts of the actuator,electric pneumatic servo valve in the fields of aerospace and military have table wide application prospect.The of jet pipe valve for each part of the structure and principle of the analysis,torque motor,a jet tube amplifier,piston and other structural parts of the mathematical model is established.By analytic method and system identification method is used to analysis the jet pipe overall mathematical model and the mathematical model of the system is simulated by computer simulation software MATLAB /simulink,study the static characteristics of the amplifier section of the jet pipe,also analyzes the pneumatic jet pipe servo valve frequency characteristics and time domain characteristics. |
