摘要
采用位置跟踪和电流反馈的双闭环控制下,对2D数字伺服阀的动静态特性进行实验研究。动态工作下,阀的阶跃响应时间最快可达到6 ms,在输入信号的幅值对应为阀最大开口的25%下,幅频特性为-3 dB对应的频宽约为65Hz,静态状态下,阀芯转角输入与轴向位移输出基本成线性。实验结果表明,2D数字伺服阀具有良好的线性度和对数频率特性。
Under the location tracking and current feedback dual-loop control, the paper carried out the experimental study the static and dynamic characteristics of 2D digital servo valve. In dynamic working condition, the valve＇s fastest step response time can reach 6 ms. The amplitude of the input signal corresponding to the 25% of valve opening, amplitude-frequency characteristics correspond to -3 dB bandwidth is about 65 Hz. In static state, the input of valve angle and the output of axial displacement is linear basically. Experimental results show that 2D digital servo valve has good linearity and logistic frequency characteristics. [ Ch,8 fig. 9 ref. ]
出处
《轻工机械》
CAS
2012年第6期68-71,共4页
Light Industry Machinery
关键词
2D数字阀
静态特性
动态特性
2D digital valve
static characteristics
dynamic characteristics
