Ⅰ.临界比例度法一、概述临界比例度法,是目前应用较广的一种整定参数的方法。它的特点是,可以不需要求得调节对象的特性,而直接在闭合的调节系统中进行整定。如果一个自动调节系统,在外界干扰作用后,不能回复到平衡状态,也不发散,而是产生一种等幅的振荡,这样的调节过程,称 Ⅰ. Critical Ratio Method I. Overview The critical ratio method is a widely used method of setting parameters. It is characterized by the need to adjust the characteristics of the object can not be adjusted directly in the closed regulation system tuning. If an automatic adjustment system, in the external interference, can not return to the equilibrium state, nor divergent, but to produce a kind of amplitude oscillation, this adjustment process, said