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three-phase mean current meter 三相平均电流表
Is the stator three phase line voltage the same? And is it current zero? 定子三相电压是否相等?其电流是否为零?
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Whether actual current can track reference current well will affect the control performance of three phase rectifier with unity power factor. 在三相单位功率因数整流器中 ,实际电流能否跟踪参考电流将影响整个系统的控制性能。
Note 1 Single display the three phase total active power. 注1:单屏显示三相总有功功率。
Three phase wiring saves 50% of power compared with one-phase. 三相电源比单相电源可省电逾50%25之多。
Furthermore, the novel field-orientated control algorithm was achieved by generating phase current references in the three phase stationary frame. 在此基础上，给出一种直接在三相静止坐标系中产生相电流命令的磁场定向控制算法。
It is designed with outputs for a direct high current gate drive of an all N-channel power MOSFET three phase bridge with a maximum supply voltage of 38 V. 该产品可为全N通道功率MOSFET三相桥的直接大电流门极驱动提供输出,最大电源电压为38 V。
A 10~(-14)A pico-ampere current meter made of integrated circuit CA3420 is presented. 用集成电路CA3420可制成10~(-14)A高灵敏微电流计。
First, we substitute linear Hall sensor signal for general FOC which can directly produce various phase current commands in three phase stationary frames. 霍尔元件讯号由查表的机制可计算得到马达转子位置，进而能得到转速讯号，以达到速度控制的目的。
It can generate a steady 380 V three phase alternating current through an AVR circuit, and can drive heavy electric tools such as polisher, air compressor and so on. 采用三次谐波励磁的同步发电机,通过AVR电路产生稳定的380V三相交流电,可以带动打磨机、空气压缩机等功率较大的电动工具;
We have got the instrument (pressure gauge, thermometer, tachometer, current meter, universal meter) ready for the experiment (test). 我们已经准备好做实验（试验）的仪器（压力表、温度计、转速计、电流表、万用表）。
As a digital-to-analog converter produces unwanted ohmic heat in the controller, pulse-width modulation is used instead to regulate the mean current. 由于数字-模拟转换器会在控制器内产生多余的欧姆热，人们改用脉冲宽度调制来控制平均电流。
Minsky divided the process into three phases. 明斯基将该过程划分为三阶段。
We hae got the instrument (pressure gauge, thermometer, tachometer, current meter, uniersal meter) ready for the experiment (test). 我们已经准备好做实验（试验）的仪器（压力表、温度计、转速计、电流表、万用表）。
This control method was applied to a three phase AC/DC/AC conversion system. 该控制思想在三相AC/DC/AC系统中进行了实验验证。
To use the elements,you should prepare the adjustable transformer or silicon controlled transformer,voltage meter,current meter and autocontrol temperature meter etc. 使用元件必须配备调压变压器或可控硅调压器及电压、电流表和温度自动控制仪表等。
Liu Ye, Wang Caitang, SuYanminetal.Birefringent effect of three phase optical current transducer system[J].Journal of Xi'an Jiaotong University, 2003, 34(2): 24-27. [7]刘晔;王采堂;苏彦民;等.;三相光学电流互感器的双折射效应研究[J]
To derive the residual low frequency current velocity, one usually deploys current meter moorings over 25 hours or more to remove the diurnal and semi-diurnal tidal components. 若要得到低频流速（主要是平均流及周期大于一天的海流），通常会施放流速仪，测量海流时间超过25小时，才能将全日潮和半日潮的成分滤除而得低频流的流速。
Around the strong currents, like North Equator Current (NEC) and the Kuroshio Extension (KE), meridional variation of the eddy zonal moving speed was much closer to that of the phase speed of Rossby Wave including effects of the zonal mean current. 在北赤道流和黑潮延续体等强流附近,涡旋的实际纬向移速与纬向平均流影响下的罗斯贝波相速更为接近。