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本文提出了一种新型气液缸和气液位置伺服系统。该系统采用气液连动控制，充分发挥液压与气动各自的优点，大大提高了位置控制精度，同时克服单纯气动的缺点。在气液回路上，利用两位三通阀、“ＰＣＭ”阀组及油开关阀实现分区控制和准确定位，解决了快速性和定位精度之间的矛盾，通过分析和实验研究表明，此方案是可行的。
This paper presents a new type of gas cylinder and gas-liquid position servo system. The system uses gas-liquid linkage control, give full play to the advantages of each hydraulic and pneumatic, greatly improving the position control accuracy, while overcoming the shortcomings of purely aerodynamic. In the gas-liquid circuit, the use of two three-way valve, “PCM” valve and oil on-off valve to achieve regional control and accurate positioning, to solve the contradiction between the rapidity and positioning accuracy, analysis and experimental studies have shown that this program It works.