11.1 概述大多数伺服教学成套设备都制成标准的或单个的元器件的形式,它们很容易地用机械和电气方法连接在一起,主要是供实验室试验之用,以便给出闭环技术的一般定性了解,以及某些更精确的理论和分析方法。本章就是叙述这样的教学设备;它是由新泽西州伯克利·海茨城FeedBack公司特地为刚开始学习伺服控制的那些学生和读者制造的。图11—21到11—24示出了各种标准的直流和混合的交流伺服装置。下面叙述的 11.1 General Most servo-teaching kits are made in the form of standard or single components and are easily mechanically and electrically connected together, primarily for laboratory testing, to give a general sense of the closed-loop technique Qualitative understanding, as well as some more accurate theory and analytical methods. This chapter describes such a teaching device; it was created specifically for those students and readers who were just beginning to learn servo-control by FeedBack Inc. of Berkshire Hatz, NJ. Figures 11-21 through 11-24 show various standard DC and hybrid AC servo units. Described below