气动脉宽调制位置伺服系统是非线性的系统，在气缸摩擦力较大的情况下，采用传统的控制方法难以取得满意的效果。
Pneumatic PWM position servo system is nonlinear system. The satisfied results are difficult to be obtained with traditional control method while the friction force of cylinder is large.
该系统可以实现对气缸位置的高精度控制。
本文对由伺服阀和无杆气缸组成的气动伺服位置控制系统进行了数学建模和控制研究。
The pneumatic servo positioning system, which is composed of rodless cylinder and the servo valve, is studied on mathematical modeling and control in this paper.
该文对三通比例流量阀控制的摆动气缸转角位置伺服系统进行研究。
A pneumatic rotary actuator angular position servo system is studied, which adopts 3-port proportional flow valve as a control device.
升降装置由气缸控制， 该气缸有两个停止位置，可使产品码成四包；
The lifting component is controlled byan air cylinder, the products can be stacked into four packs as the air cylinder is provided with two stopping positions;
升降装置由气缸控制， 该气缸有两个停止位置，可使产品码成四包；
The lifting component is controlled byan air cylinder, the products can be stacked into four packs as the air cylinder is provided with two stopping positions;
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