This article introduces Pn-control chart commonly applied in count-basis process, and illustrates how to estimate the rate of preference for rejection P n and reasonable choice sampling number n. 介绍计件值工序中常用的Pn-控制图,阐明如何估计不合格品率p及合理选择抽样个数n。
The linear function was adopted in the three component parts of the auto disturbances rejection controller; the number of parameter was reduced; parameters adjustment process was simplified. 将自抗扰控制器各组成部分中的非线性函数用线性函数代替,减少了参数的个数,使参数整定过程简化。