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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
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Research on the highfrequency actuator of 2D digital valveφ6
LI Jianglong, RUAN Jian, LI Sheng
(College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China)
Abstract: In order to improve the frequency characteristics of digital servo valve and the response speed,a low inertia of the twophase hybrid stepping motor was choosed and used as the actuator of 2D digital valve6 ejection systems. Then, the basic theory of stepping motor was presented, and a 2D digital servo valve controller which was embedded in current and position of double closed loop control algorithm was designed in this research.The experimental results show that using the stepper motor as the actuator ,the rise time is 5 ms for 100% input signal and the bandwidth is about 305 Hz at -3 dB gain for 25% input signal. The frequency response is higher than the similar actuator of digital servo valve.
Key words: 2D digital valve; embedded control; actuator; frequency response