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液压相关易混术语[0]

Posted on 2023年11月14日 by
  • 闭环系统和闭式系统

闭环系统是控制工程的术语,主要是相对开环系统而言的,闭环系统指系统能够实现对于目标值的反馈跟踪;

闭式系统是液压传动的术语,主要是相对开式系统而言的一种系统,简而言之就是系统的吸油和排油可以不经过油箱。

  • 闭环系统的开环特性

闭环系统的开环特性主要用于衡量系统的传递函数的特性,本质上这个特性需要采用闭环测试,经过推到才能获得的特性,并不能够通过开环测试得到,因为开环系统对于输入和干扰的不稳定。

  • 动态传感器和静态传感器

动态传感器主要是测量高频和特高频的传感器,一般采用电荷式的信号转换,不用能与静态值的测量。

静态传感器主要是测量低频变化的传感器,一般频率<1000Hz。

  • 电磁溢流阀和比例溢流阀

电磁溢流阀主要是指在开关量电磁铁动作的情况(根据型号有得电动作和失电动作),会使得溢流阀功能近似于失效的状态。

比例溢流阀主要是指通过比例电磁铁,近似实现溢流阀的压力调整。

  • 伺服阀和伺服比例阀

伺服阀主要是指拥有高频响和高动态的一类换向阀,其生产制造符合伺服阀单独的标准。

伺服比例阀是指在工业现场能达到约30Hz相应的一类比例阀,其结构是比例阀,其设计制造符合比例阀的要求,但是对于频响性能符合伺服阀的部分标准。这类阀不能成为比例伺服阀。

  • 比例阀和比例溢流阀

比例阀主要是指比例换向阀的简称,即能够实现无级换向功能的一类阀。

比例溢流阀主要是指通过比例电磁铁,近似实现溢流阀的压力调整。

  • 静液压传动

根据JB10831定义:集液压泵和马达为一体,将机械能通过泵转换为液压能,液压马达又将液压能转换成机械能的装置。

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