Electro-hydraulic servo valve is the key component of electro-hydraulic servo control system. The direct drive electro-hydraulic servo valve consists of line force motor, hydraulic valve and amplifier components, it has the advantage of small volume, light weight, strong anti-pollution ability and high reliability etc. and is widely applied in a variety of control occasions, so that the application field of the electric-hydraulic servo valve is broadened greafly.%电液伺服阀是电液伺服控制系统中的关键元件.直动式电液伺服阀由直线力电动机、液压阀及放大器组件构成,具有体积小,质量轻,抗污染能力强,可靠性高等优点,在多种控制场合得到广泛应用,大大拓宽了电液伺服阀的应用领域.
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