In the case of hydraulic actuator the insensitive area of servovalve is the main cause for the phenomena "limit cycle".
指出在采用液压舵机的情况下，伺服阀的不灵敏区是出现极限环现象的一个主要原因。
The mathematical model of a pneumatic force control system with an asymmetric servovalve and a single-acting cylinder were described.
分析了非对称气动伺服阀控单作用气缸的气动压力控制系统的数学模型。
A new servovalve using a pressure control pilot state was introduced, which USES two spools instead of single spool in power magnifying stage.
介绍了一种新型的压力先导控制伺服阀，该阀的功率放大级采用双阀芯结构代替传统单阀芯结构。
Industrial flow servovalve combined with an accumulator has been used in controlling the cylinder pressure to ensure system stability, velocity, and accuracy.
阐明根据工艺特点采用工业流量伺服阀和蓄能器控制油缸压力可以满足稳定、快速、准确的要求。
The mathematical model is also built and system nonlinear effects are analyzed, especially nonlinear effects of electro-hydraulic servovalve, pump station, and pipes.
分析研究了系统非线性的影响，特别是电液伺服阀的非线性、油源、管道等因素的影响，建立了系统的数学模型。
The speed servo system which has no servovalve is controlled by a electromagnetic clutch. This device is simple in construction and it has high resistance to contaminant.
非阀式速度伺服是由电磁离合器作控制元件的电液伺服系统，它具有结构简单、抗污染力强的优点。
The speed servo system which has no servovalve is controlled by a electromagnetic clutch. This device is simple in construction and it has high resistance to contaminant.
非阀式速度伺服是由电磁离合器作控制元件的电液伺服系统，它具有结构简单、抗污染力强的优点。
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