2009•Machine Tool & HydraulicsRequires access
Frequency Response of 2D Digital Servo Valve
Ruan Jian
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Abstract
The working principle of 2D digital servo valve was introduced,and the mathematic model was established.The digital valve controller was designed by the technique of continual angular displace control of stepper motor.The frequency response of the 2D digital servo valve was experimentally measured.Experimental results show that the 2D digital servo valve has a fairly fast response speed,the bandwidth is about 100 Hz at -3dB gain for 25% input signal.