1.最小与非最小相位系统的概念 如果系统的传递函数在右半S平面上没有极点 和零点,而且不包含滞后环节,则称为最小相 位系统,否则,称为非最小相位系统。 只包含比例、积分、微分、惯性、振荡、一阶 微分和二阶微分环节的系统是最小相位系统。 而包含不稳定环节或滞后环节的系统则是非最 小相位系统

1.最小与非最小相位系统的概念 如果系统的传递函数在右半S平面上没有极点 和零点,而且不包含滞后环节,则称为最小相 位系统,否则,称为非最小相位系统。 只包含比例、积分、微分、惯性、振荡、一阶 微分和二阶微分环节的系统是最小相位系统。 而包含不稳定环节或滞后环节的系统则是非最 小相位系统

一、高斯通量定理的应用 题4-1,试计算电荷面密度为的无限大平面产生的电场强度,1)利月 斯定律。2)直接计算 浑:1)、解题分析,在板的两侧电场方,向一定向外,如图4.1所示,上 大小相同 闭合面法向 闭合积分面,上下面为S

Gas flux across concentration gradient: J=h(Cg-Cs ), Cs=concentration at surface Flux for chemical reaction: J(#/vol s)=k Cs, where k=koexp[-AG/(kBT)I Film growth velos/ hk ii where Nr is number of deposited species/cm Diffusio

Solubility limit for P at 1273 K is Co 2 1 x 10 cm\. Intrinsic carrier concentration is 10 cm\. Thus, before including higher order terms, Do=13x10-4 cm2/s. But with first order and second order correction terms

Electrical Potential Ener and Electric Potentia 17.1 Electrical potential energy and electric potential 1. Electric force is conservative force Coulomb's force:

一、动量 1、质点的动量:P=mv大小为mv方向由确定; 单位为:kg.m/s 2、质点系的动量:P=∑mv 质点系总质量为:M=m

3-1一台四极直流电机,元件数S=120,每元件电阻为0.2,当转速为1000r/min时,每元件的平 均电动势为10V。求当电枢绕组分别为单叠和单波时,正负电刷间的电压U和电枢绕组电阻R各 为多少?

It's really sort of amazing that people manage to communicate in the English language Here are some typical sentences: 1. You may have cake or you may have ice cream 2. If pigs can fly, then you can understand the Chernoff bound 3. If you can solve any problem we come up with then you get an a for the course. 4. Every American has a dream What precisely do these sentences mean? Can you have both cake and ice cream or must you choose just one desert? If the second sentence is true, then is the Chernoff bound incomprehensible? If you can solve some problems we come up with but not all, then do you get an a for the course? And can you still get an a even if you cant solve any of the problems? Does the last sentence imply that all Americans have the same dream or might

Number Theory I Number theory is the study of the integers. Number theory is right at the core of math ematics; even Ug the Caveman surely had some grasp of the integers- at least the posi tive ones. In fact, the integers are so elementary that one might ask, What's to study?