近代,随着晶体管电子控制技术的迅速发展,与晶体管电子器件具有相似作用的微型化气动控制器件也日益受到人们的重视。这些气动控制器件可进行气动的逻辑线路设计,实现顺序数字的程序控制,起到了“气动计算机”的作用。由于气动逻辑控制元件的体积很小,可以作成积存式安装在一块小板上。在一个小盒子里就能容纳一套有输入,输出和逻辑运算的装置。它的输入元件包括气动按扭、信号发生器、限位开关、压力及位置传感器, In recent years, with the rapid development of transistor electronic control technology, miniaturized pneumatic control devices that have similar functions with transistor electronic devices have drawn increasing attention. These pneumatic control devices can be aerodynamic logic circuit design, to achieve sequential digital program control, played a “pneumatic computer” role. Due to the small size of the pneumatic logic control unit, it can be stored as a stack on a small board. In a small box can accommodate a set of input, output and logic devices. Its input components include pneumatic buttons, signal generators, limit switches, pressure and position sensors,