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一、力伺服系统——静压轴承在讲述静压轴承之前先介绍一下双稳态回路。图(1)为双稳态回路。它实际上是一个正反馈连接的差动放大器。V_1和V_2都工作在甲类状态,当P_1=P_2时,两柱阀的输入端都无讯号输入,处于静态工作点处。这是一种不稳定状态,只要由于某种原因使P_1稍大于P_2,则V_1获得一个正的微小输入讯号,而V_2获得一个负的微小输入讯号,于是使前者更
First, the servo system servo - static pressure bearing Static pressure bearing before describing the bistable circuit. Figure (1) for the bistable loop. It is actually a positive feedback connection of the differential amplifier. V_1 and V_2 all work in state A, and when P_1 = P_2, there is no signal input at the input of two column valves and they are at static working point. This is an unstable state. As long as P_1 is slightly larger than P_2 for some reason, V_1 gets a positive small input signal, and V_2 gets a negative small input signal. As a result, the former is more