valve controlled servo

A measuring method which is named postposition throttle nozzle pressure style pneumatic measuring principle for servo valve's overlap measuring is introduced, and a servo valve's orifice machining quality measuring instrument is developed, which is controlled by computer.

介绍一种后置节流孔压力式气动测量原理用于伺服阀叠合量的气动测量，研制了一台伺服阀阀口加工质量测量仪，并实现了微机自动控制。

The passive loading system controlled by P-Q servo-valve can eliminate superfluous force because of the Pressure feedback of P-Q servo-valve.

由于P-Q伺服阀内部的压力反馈作用，使得采用P-Q伺服阀控制的被动式加载系统能取得较好的抑制多余力效果。

Bond graph model of electro-hydraulic load simulator controlled by P-Q servo-valve was set up.

建立了采用P -Q 伺服阀控制加载的电液负载模拟器系统键图模型,并通过仿真验证了该模型的正确性.