摘要
研究了圆形窗口伺服阀的非线性，并对其进行了补偿，理论和实例表明：补偿后的圆形窗口伺服阀具有矩形窗口伺服阀的特性．
Abstract Electrohydraulic servo valve is a crucial control component whose performances affectdirectly servo system’S perfomances，Although rectangle window is diffcult to process，it has agood linearity． So the servo valve in common use is the servo valve with rectangie window.The servo valve with circular window is easy to procos， but it has serious nonlinearity，Thispaper studieS on the nonlinearity of servo valve with circular window and compensates it．Thetheory and example show that the servo valve with circular window by compelisating has thecharacteristics of servo valve with rectangle window.Key Wonds senvo system，nomliearity circular window，rectangle window
