电容

Forward alternating current small signal method can be used to measure the capacitance-voltage characteristic of light-emitting diodes, and negative capacitance can be observed.

利用正向交流小信号方法对发光二极管的电容-电压特性进行测量，可以观察到发光二极管中的负电容现象。

Using the forward alternating current small signal method to measure the capacitance-voltage characteristic of an LED, negative capacitance can be observed.

利用正向交流小信号方法对发光二极管的电容-电压特性进行测量，可以观察到发光二极管中的负电容现象。

Products and Service: DN series data-controlled alternating current projectiong welder ZDN data-controlled commutate spot welder UN data-controlled commutate spot welder DKR\DR capacitance energy storing spot welder FN alternationg and ZFNcommutate sewing welder DM direct current pulse spot welder seam welding machine of protectiong by gas for recti or cirol seam varity of special seam welding machine for poine stich AND DKR-350 capacitance energy storing spot welder has been certified whit national patent and DTN-100/DTN-150 has been honored with technology innovation award.

现主要产品有： DN系列数控交流式点凸焊机。 ZD数控次级整流式点焊机。 UN数控交流对焊机。 DKR、DR电容贮能式点焊机。 FN交流式和ZFN次级整流式缝焊机。 DM直流脉冲式电焊机。直、环缝气体保护焊接专机。各类焊接生产线。其中： DKR-350电容贮能式点焊机获国家专利。

Thus it discussesd the electrical backgrounds of Fourier transformation and the analytical method of the non-period electric circuits.

单位阶跃函数的一个表现为电路中电容上电压的跳跃变化，这将引起电容中电流的巨变，而单位脉冲函数体现了这一特点。

He Cross-Talk problem of big capacity IPSLCD is same to TNLCD, the TFT method is a effective way to solve this problem, but the design of electrode and store capacity affected the aperture ratio and threshold voltage.

FT-IPS电极设计和存储电容设计对于器件的驱动电压和开口率有很大影响，本文从降低器件的驱动电压和扩大开口率的角度出发，对TFT-IPS电极设计进行优化设计，并设计了新型存储电容，使得开口率提高了22％。

It not only can increase the aperture ratio, but it also can decrease the time of charge as well as can accelerate the speed of setting the pixel.

在新型的画素电路方面，是提出新式电流型的画素电路，主要是改善传统电路中储存电容过大，造成开口率过低的问题，新型画素电路可将储存电容有效的缩小，不仅可增加开口率，且能减少充电时间，加速画素设定时间，适合应用於大画面、高解析度的面板。

PART 1 UNIT 1 B Electrical and Electronic Engineering Basics A Electrical Networks ———————————— 3 Three-phase Circuits A The Operational Amplifier ——————————— 5 UNIT 2 B Transistors A Logical Variables and Flip-flop —————————— 8 UNIT 3 B Binary Number System A Power Semiconductor Devices —————————— 11 UNIT 4 B Power Electronic Converters A Types of DC Motors —————————————15 UNIT 5 B Closed-loop Control of DC Drivers A AC Machines ———————————————19 UNIT 6 B Induction Motor Drive A Electric Power System ————————————22 UNIT 7 B PART 2 UNIT 1 B Power System Automation Control Theory A The World of Control ————————————27 —————29 The Transfer Function and the Laplace Transformation UNIT 2 B A Stability and the Time Response ————————— 30 Steady State————————————————— 31 A The Root Locus ————————————— 32 ————— 33 UNIT 3 B The Frequency Response Methods: Nyquist Diagrams UNIT 4 A The Frequency Response Methods: Bode Piots ————— 34 B Nonlinear Control System 37 UNIT 5 A Introduction to Modern Control Theory B State Equations 40 38 UNIT 6 A Controllability, Observability, and Stability B Optimum Control Systems UNIT 7 A Conventional and Intelligent Control B Artificial Neural Network Computer Control Technology A Computer Structure and Function 42 B Fundamentals of Computer and Networks 43 44 PART 3 UNIT 1 UNIT 2 A Interfaces to External Signals and Devices B The Applications of Computers 46 UNIT 3 A PLC Overview B PACs for Industrial Control, the Future of Control UNIT 4 A Fundamentals of Single-chip Microcomputer 49 B Understanding DSP and Its Uses 1 UNIT 5 A A First Look at Embedded Systems B Embedded Systems Design Process Control A A Process Control System B 50 PART 4 UNIT 1 Fundamentals of Process Control 52 53 UNIT 2 A Sensors and Transmitters B Final Control Elements and Controllers UNIT 3 A P Controllers and PI Controllers B PID Controllers and Other Controllers UNIT 4 A Indicating Instruments B Control Panels Control Based on Network and Information A Automation Networking Application Areas B Evolution of Control System Architecture PART 5 UNIT 1 UNIT 2 A Fundamental Issues in Networked Control Systems B Stability of NCSs with Network-induced Delay UNIT 3 A Fundamentals of the Database System B Virtual Manufacturing—A Growing Trend in Automation UNIT 4 A Concepts of Computer Integrated Manufacturing B Enterprise Resources Planning and Beyond Synthetic Applications of Automatic Technology A Recent Advances and Future Trends in Electrical Machine Drivers B System Evolution in Intelligent Buildings PART 6 UNIT 1 UNIT 2 A Industrial Robot B A General Introduction to Pattern Recognition UNIT 3 A Renewable Energy B Electric Vehicles UNIT 1 A

电路 2 电路或电网络由以某种方式连接的电阻器，电感器和电容器等元件组成。如果网络不包含能源，如电池或发电机，那么就被称作无源网络。换句话说，如果存在一个或多个能源，那么组合的结果为有源网络。在研究电网络的特性时，我们感兴趣的是确定电路中的电压和电流。因为网络由无源电路元件组成，所以必须首先定义这些元件的电特性。就电阻来说，电压-电流的关系由欧姆定律给出，欧姆定律指出：电阻两端的电压等于电阻上流过的电流乘以电阻值。在数学上表达为： u=iR (1-1A-1)式中 u=电压，伏特；i =电流，安培；R =电阻，欧姆。纯电感电压由法拉第定律定义，法拉第定律指出：电感两端的电压正比于流过电感的电流随时间的变化率。因此可得到：U=Ldi/dt 式中 di/dt =电流变化率，安培/秒； L =感应系数，享利。电容两端建立的电压正比于电容两极板上积累的电荷 q 。因为电荷的积累可表示为电荷增量 dq 的和或积分，因此得到的等式为 u=，式中电容量 C 是与电压和电荷相关的比例常数。由定义可知，电流等于电荷随时间的变化率，可表示为 i = dq/dt。因此电荷增量 dq 等于电流乘以相应的时间增量，或 dq = i dt，那么等式(1-1A-3)可写为式中 C =电容量，法拉。

The capacitance gaps on both sides of mechanical oscillator in the torsion pole spring tiltmeter are difficult to be the wholly same because of the machining error, so the variation of ambience temperature and its grads will lead to the inconsistent variation of capacitances on both sides and the output of capacitance transducer circuit will also change.

由于加工误差的存在，扭杆弹簧倾斜仪中的机械振子的两边电容间隙很难完全一样，周围环境温度及其梯度波动会引起两边电容的变化不一致，电容传感电路的输出也会发生变化。

Combined with the way of judging whether the fault is before or behind series-wound compensator by capacitor parameters and the calculated short-circuit reactance by Fourier transform,the fault is located using the relation table between reactance and distance.

结合该识别方法和已有文献所述的电容参数识别的判别故障点在区间电容前或电容后的方法，最后根据傅里叶算法计算的短路电抗值，实现基于电抗法的查表测距。

Water Industry Co., Ltd. Shenzhen City franchise inductance, capacitance, insurance tubes, tantalum capacitor, electrolytic capacitor, two, transistors and resistors and other electronic components, mainly engaged in Acting: AVX, KEMET, VOIS, VOLSEN, TAIYO, TOREX, DENKO, SHOWA , SEIKO, etc., inventories are substantial spot our strength.

深圳市沃特实业有限公司专营电感、电容、保险管、钽电容、铝电解电容、二、三极管及电阻等电子元件，主要经营代理： AVX、KEMET、VOIS、VOLSEN、TAIYO、TOREX、DENKO、SHOWA、SEIKO 等，库存大量现货是我们的实力。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。