1) di/dt detection
电流变化率探测
2) electrical resistivity survey
直流电阻率探测
3) current rate of change
电流变化率
1.
In this paper , the protection principle based on current rate of change is introduced, and a kind of filtering algorithm is deduced by mathematics.
本文简单介绍了电流变化率保护的原理,并通过数学推导导出了一种直流滤波算法。
2.
First,the basic principle of inductance method is introduced;and then,how to determine the rotor initial position is discussed by single phase electrifying & double ones respectively;finally,an example of a 6-pole/9-slot BLDC motor is analyzed to show the relations between locations of rotor and the current rate of change.
首先介绍了电感法的基本原理,在此基础上分别讨论了定子一相和二相通电时转子磁极极性的确定方法,最后以6极/9槽三相六状态无刷电机为例分析了不同转子平衡位置与电流变化率的大小关系。
5) the rate of current and voltage change
电流电压变化率
6) change detection
变化探测
1.
A new texture-based change detection approach is presented that involves texture segmentation to describe the influence of different types of the surficial congiguration.
提出一种基于纹理分割的遥感图像变化探测算法,利用纹理来反应不同地表形态的影响。
2.
The paper studied the shoreline dynamic evolution of the Guanting Reservoir from 198