We define the unit-step forcing function as a function which is zero for all values of argument which are less than zero and which is unity(1) for all positive values of its argument

The inductance which is equivalent to several inductance connected in series is simply the sum of the series inductance

The displacement current flowing internally between the capacitor plates is exactly equal to the conduction current flowing in the capacitor leads

第一节 角度——数字传感器 第二节 超声波传感器 第三节 红外、激光传感器

Let=R3 and The result we have found for two /R =k, we have inputs may be extended to any v2=-k(v1+3) number of inputs

第一节 磁电式传感器的工作原理 第二节 磁电式传感器的结构和类型

8.1 复数 8.2 正弦量 8.3 正弦量的相量表示

UB =A(DA-UB) =cons tant The inverting OP-AMP circuit

Let us first define a linear element as passive element that has a linear voltage-current relationship

We select one node as a reference node and then define a voltage between each remaining node and the reference node