电压

We design a fast calculating amplitude method: obtain two instantaneous voltages at first, after that calculate the current voltage virtual value once we get another instantaneous voltage.

我们设计了一种快速计算幅值的方法，只需先采得两个电压瞬时值，之后每采样一个电压瞬时值即可求得当前的电压幅值。

Simulation and experimental results indicate that for the SPWM inverter based on instantaneous output voltage feedback control,the fundamental open circuit output voltage incr...

仿真和实验结果表明，对于采用瞬时输出电压反馈控制技术的SPWM逆变器，其输出电压在空载时随着死区时间的增加而增加，负载电流超过临界电流后其输出电压随死区时间增加而下降；其阻性负载时的外特性曲线是一条先下降后上升的曲线。

There is a conductive brushlelss use of molecular electrostatic voltage air ionization, this high voltage electrostatic high General produced from fast-moving under the pressure of implantated, as in a fast-moving of squeege inverterbral, Polyester mesh surface there static electricity voltage.

有一种导电刷利用已有的静电电压使空气分子电离，这种高静电电压一般产生于在高压力下快速移动的材料表面，如在高速运动的刮板压力下，聚酯丝网表面就会存在静电电压。

The article focuses on the teaching of circuitry,from the basic concept,discusses the direction of the voltage or the electric current in different situations such as Ohm′s law,Kirchhoff′s law,Superposition theorem and so on.

结合在多年的教学，本文针对不同的情况电压和电流的方向做了探讨。1电流电压的实际方向和参考方向习惯上把电流的方向定义为正电荷运动的方向或负电荷运动的相反方向，而把电压的实际方向定义为电位降的方向。

For the voltage space vector close loop control-based strategy, based on the proportional-plus-integral-based control scheme, a new control scheme composed of an adaptive resonant controller and a PI controller is proposed in the paper, by which the stator voltage waving is almost elimited, and a very well control performance is achieved for stator voltages, naturally, the softly cut-in control is realized.

针对基于空间电压矢量闭环控制的这一投切方案，在PI调节器控制的基础上提出了自适应谐振调节器与PI调节器并行控制的控制策略，有效抑制了定子电压幅值的波动，使定子电压具有较好的控制响应，进而实现了双馈风力发电机零电流切入电网的目的。

The reasons of low voltage in the electrical network, and harm to the electrical equipments are analyzed.

分析了电网中出现低电压的原因以及低电压运行对线路电气设备的危害，有针对性地提出了预防低电压运行的各种措施。

2TheMax GPX750 PSU for the desktop computer features total output of 750W, rated supply voltage of 115V to 230V auto range, rated mains frequency of 47 to 63 Hz, rated input of 115V at 10A or 230V at 5A, efficiency of 85% minimum at typical load, holdup time of 16.6ms at nominal line under full load condition, power good signal between 100ms to 500ms, over current protection at 110% to 150% individual output power, over voltage protection for +5V is between 5.8V to 6.3V,+12V from 14V to 17V, 3.3V from 3.6V to 4.2V, air flow by DC fan, operating temperature of 0°C to 50°C and operating humidity of 20% to 90% non-condensing.

2themax gpx750电源为桌上型电脑的功能总产量750瓦特，额定电源电压115v到230v汽车范围，额定工频47至63赫兹，额定输入的115v在10 A条或230v在5 ，效率85 ％，最低在典型负载，持的时间16.6ms的名义在网上下，满负荷条件下，电源良好信号之间的100 ms到500ms ，过电流保护在110 ％至150 ％个别的输出功率，过电压保护，为5 V是之间的5.8 V至6.3v ，+12 V的从14v至17v ，电压为3.3 V从V到3.6 V至4.2 V ，空气流量由直流风扇，操作温度0° C到50 ° C和运作中的湿度为20 ％至90 ％，非冷凝。

Results It is significant that the difference between the data of display difference of tumor and surrounding tissue in different voltage conditions. It is significant that the difference between the data of tumor size difference in different voltage conditions. It is significant that the difference between the data of the CT value of tumor and other side masseter.

实验结果不同电压下肿物与周围组织关系显示情况的差异有统计学意义，不同电压下测量肿物大小的数据间差异有统计学意义，不同电压下肿物与正常组织CT值变化的差异有统计学意义。

The purpose of this research is to measure the different EOG (Electro-Oculography, EOG) signals resulted from eye movements. The measured voltages will be transmitted to VCO (Voltage Controled Oscilloator, VCO), and then VCO will transfer the different voltages to different frequencies of square waveform signals. The square waveform signals can replace the pulse trains generated by circle disk encoder, as the input signal of infra red sensor in the mechanical mouse.

本论文主要研究目的，乃是应用眼电图法(Electro-Oculography， EOG)来量测眼球运动所产生的电压讯号，以EOG方式量测到的电压，再经由电压控制震荡器(Voltage Controled Oscilloator，VCO)转换成不同频率的方波，VCO并将方波讯号传送给滑鼠的红外线感应器，以替代轨迹球滚动时其带动圆盘编码器所产生的脉波。

A small generator called a magneto is contained within the megohmmeter housings.themagneto furnishes the power for the instrument,just as batteries do for for an ohmmeter.the magneto can be hand powered or driven by batteries or other sources of electricity.megohmmeters have many different voltage ratings.some of the most common are designed to operate on oine of the following values:500V,1000V,and 10000V.the amount of volage the magneto should generate depends upon the ohmic value and the type ofresistance being measured.

兆欧计内置了一种小型磁发电机。磁发电机为兆欧计供电，就如同电池为欧姆计提供电力一样。磁发电机可以手摇，电池或者其他电源驱动。兆欧计有许多不同的电压等级。一些最常用的兆欧计电压为（原文此处有错，采用意译）：500伏，1000伏，和10000伏。磁发电机需产生的电压值取决于待测电阻值和电阻的类型。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。