本文提出了一种新的机液伺服阀，概要介绍了这种阀的工作原理，结构特点及应用情况。
This paper puts forward a new mechanical-hydraulic servo valve, and briefly introduces operation principle, structural characteristics and application of the valve.
利用GMM设计新型的电—机转换器，取代传统型电—机转换器，如力矩马达或力马达等，可提高整个电液伺服阀的响应速度和控制精度。
Utilizing GMM to design new-type actuator, replacing traditional actuator such as the torque motor or the force motor, will enhance the response speed and precision of electro-hydraulic servo valve.
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