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current and voltage
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  电流电压
     Combining with SCM AT89S52 as the controlling core, the electric power parameters' collection by ATT7022B IC and the data transmission in use of GPRS DTU, it realizes the transformer's monitor of current and voltage value, active power, reactive power, energy and power-factor, which ensures the security of power grid.
     系统以单片机AT89S52为控制核心,ATT7022B采集电能参数,GPRS DTU传输数据,实现对变压器的电流电压值、有功功率、无功功率、电能、功率因数等参数的实时监控,保证电网的安全运行。
短句来源
     The constant-current modulator based on the microprocessor 80C196, and its high-speed input and output used as silicon controlled phasing synchronization and triggering signal, and its A/D converter (10 bit) used as the input interface of current and voltage is presented.
     系统恒流调光器以80C196为核心计算摸块,其高速输入/输出作为可控硅相位同步和触发信号,10位A/D转换器作为系统电流电压输入接口。
短句来源
     Application of Fault Range Finding System with Mixed Travelling Wave of Current and Voltage Based on Wavelet Transformation Technology in 750 kV Power Transmission Project
     基于小波变换技术的混合电流电压行波测距系统在750kV输电工程中的应用
短句来源
     Theory Analysis of Current and Voltage Model in Synchromotor Vector Control System
     同步机矢量控制系统电流电压模型的理论分析
短句来源
     DESIGN SCHEME OF STATIC CURRENT AND VOLTAGE RELAYS
     静态电流电压继电器的设计方案
短句来源
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  电流与电压
     It includes several modules of the relationship between current and voltage, voltage and current, resistance and pulse width or height, fatigue characteristics.
     该系统主要有电流与电压关系测试、电压与电流关系测试、电阻与所加的脉冲信号关系的测试和疲劳特性测试等模块组成。
短句来源
     Secondly, the keypoints of developing and working principle of main hardware system whose core is80C196KC SCM, and the hardware circuit which is consisted of inputting and processingcircuit of current and voltage signal, sampling enabling signal circuit of sampling,displaying and alarming are analyzed detailed.
     其次,对以80C196KC单片机为核心器件的硬件系统、电流与电压信号的输入与处理电路、采样启动信号产生电路以及显示、报警等硬件电路的设计要点与工作原理进行了详细分析,对系统软件的设计思想以及主程序、中断程序、采样程序、数据处理程序与其它功能程序进行了系统性介绍。
短句来源
     Through controlling the wave of IGBT inverter arc welding power source ,the welding current and voltage can be controlled and it comes true to decrease CO (2)arc welding spatter.
     通过IGBT逆变电源波形控制,实现了对CO2气体保护焊时的焊接电流与电压的控制, 从而达到减少飞溅的目的。
短句来源
     Measurement of Welding Current and Voltage for Resistance Spot Welding Inverter
     逆变电阻点焊电源焊接电流与电压的测量技术
短句来源
     The electric current and voltage are close to the phase after compensating, namely the power factor is close to 1, so the purpose of dynamic var compensation is achieved.
     由于补偿后的电流与电压在相位上接近,即补偿后的功率因数接近1,所以达到了动态无功功率补偿的目的。
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  “current and voltage”译为未确定词的双语例句
     Selection of current and voltage transformer for 35 kV and 10 kV power system
     35kV、10kV电力系统中PT、CT的选择
短句来源
     Measuring of Exciter’s 100Hz Current and Voltage
     励磁机100Hz电流和电压的测量
短句来源
     We observed the current and voltage modulations of La0.9Sr0.1MnO3/SrNb0.01Ti0.99O3 p-n junctions by applied magnetic fields and found that the p-n junctions exhibited the positive colossal magnetoresistance (CMR) behavior for the first time.
     首次在La0.9Sr0.1MnO3/srNb0.01Ti0.99O3(LSMO/SNTO)异质结上,观测到全氧化物p—n结电流和电压的磁调制与正磁电阻效应。
短句来源
     The power output of the stack was 1kW~1.5kW and the current and voltage output of the stack was 40A~69A,27V~23V respectively. The normal current density of the electrode was 300mA/cm 2~530mA/cm 2,and the energy efficienty of the stack was 52%.
     电池组输出功率为1kW~1.5kW,电池组输出电流为40A~69A,输出电压为27V~23V,电极工作电流密度为300mA/cm2~530mA/cm2,电池组能量转化效率为52%。
短句来源
     To reduce the error in A/D sample of circuit measurement and protecting, the method about the 35kV/110kV circuit measurement and protecting is given to show program and designs of circuit by using the inbeded ADC of TMS320LF2407.Current and voltage is transmitted to DSP chip after A/D, and handled with DSP.
     为了解决在配网线路测量与保护技术中采样A/D不稳定性,采用TMS320LF2407DSP内嵌的ADC电路实现35kV/110kV线路测量和保护的方法,给出了详细的电路设计和有关程序设计.
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  current and voltage
In order to demonstrate the existence of the vortex pancake in high temperature superconductor experimentally, a configuration in which the current and voltage electrodes lies separately on the top and bottom surface is used.
      
Active current and voltage controls based on the quantum tunneling effect are discussed.
      
The values of noise in terms of charge and the voltage-current and voltage-capacitance characteristics were analyzed.
      
The source ensures an argon ion beam current of up to 80 mA at a discharge current and voltage of 1 A and 115 V, respectively, and a pressure of 1.5 × 10-2 Pa in the chamber.
      
The latter approach is shown to better describe the existing experimental dependence of the discharge voltage and the phase shift between the discharge current and voltage on the driving power.
      
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The profiles of junction current and voltage and carrier-concentration in an injection laser with filament were calculated on the basis of a simple model. Numerical results indicate how the various parameters such as bulk resistivity and carrier diffusion length in the active region affect the profiles. Particularly, the filament width is strongly dependent on the bulk resistivity. The model connects the stimulated radiation characteristics of the device with the measurable quantities of the external circuit....

The profiles of junction current and voltage and carrier-concentration in an injection laser with filament were calculated on the basis of a simple model. Numerical results indicate how the various parameters such as bulk resistivity and carrier diffusion length in the active region affect the profiles. Particularly, the filament width is strongly dependent on the bulk resistivity. The model connects the stimulated radiation characteristics of the device with the measurable quantities of the external circuit. It shows that there is obvious difference between average density of operating current and current density in the filament rigion. It shows also that nonuniformity of material will play an important role in locating the filament.

本文从一简单模型出发,计算了丝状发光器件的电流密度、电压、载流子浓度和增益分布。以数值结果揭示外延层的体电阻率及厚度、活性区载流子的扩散长度、模增益和丝区宽度等参量对上述各种分布的影响。特别是电阻率,对丝区宽度将有显著影响。模型把外电路的可测量与器件的发光特性联系在一起,指出平均工作电流密度与发光丝区的电流密度之明显差别。结果也表明,器件材料的不均匀性对丝的定位将有重要作用。

Measurements of the voltage-current characteristics and space-charge capacitance have been made on the epitaxial p-n junctions grown by method of silicon carbidt crystals sublimation. An analysis of the forward voltage-current and voltage-capacitance charateristics shows that the structures of the p-n junction may vary over a quite wide range, from typical p-i-n junctions to nearly linear graded junctions resulted from different epitaxial growth parameters, but most of them have intermidiate structures....

Measurements of the voltage-current characteristics and space-charge capacitance have been made on the epitaxial p-n junctions grown by method of silicon carbidt crystals sublimation. An analysis of the forward voltage-current and voltage-capacitance charateristics shows that the structures of the p-n junction may vary over a quite wide range, from typical p-i-n junctions to nearly linear graded junctions resulted from different epitaxial growth parameters, but most of them have intermidiate structures. The effect of epitaxial growth parameters on structures of p-n junctions is briefly discussed.

本工作测量了升华外延碳化硅p-n结的电流-电压特性和空间电荷电容。通过对正向电流-电压特性及电容-电压特性的分析,表明:随着外延生长条件的不同,这种p-n结的结构可以在相当宽的范围内变化,从近于线性梯度结直到典型的p-i-n结,而大多数p-n结则介于这两者之间。文中就外延生长条件对p-n结结构的影响进行了简略的讨论。 此外,还给出了升华外延碳化硅p-n结正向电发光的亮度-电流关系、光谱分布以及脉冲和交流激励的测量结果。

The typical current and voltage waveform of TRAPATT diode as well as its inherent physical parameters and operating parameters are investigated in this paper. The normalized impedance, power output, efficiency and characteristics of the harmonics in the large nonlinear range are analysed by using the frequency domain method. The requirements of impedance match between the device and the circuit in various operating conditions are obtained. The maximum possible efficiency of TRAPATT diode is estimated....

The typical current and voltage waveform of TRAPATT diode as well as its inherent physical parameters and operating parameters are investigated in this paper. The normalized impedance, power output, efficiency and characteristics of the harmonics in the large nonlinear range are analysed by using the frequency domain method. The requirements of impedance match between the device and the circuit in various operating conditions are obtained. The maximum possible efficiency of TRAPATT diode is estimated. The numerical calculations are given with some typical parameters of the device and the circuit in S-band as an example, and characteristic curves for different working conditions are plotted. The results, show that measured values of circuit impedance are close to those calculated from typical waveforms.

本文通过俘越(TRAPATT)二极管的典型的电流和电压工作波形,联系器件的固有物理参量、电性参量以及工作参量,以频域法分析了这种具有大非线性运用器件的归一化阻抗、输出功率、效率以及谐波等的特性。得到了器件在不同工作状态下对于电路匹配阻抗的要求。估算了俘越模式可能获得的最大效率。文中以S波段的常用器件和电路工作参量为例进行数值计算,给出不同工作状态下的特性曲线。对典型实验电路的实测表明,电路阻抗和从典型波形计算出的数值是比较接近的。

 
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