Measurementformotor three-phase winding DC resistance.
测量电机三项绕组直流电阻值。
Low DC resistance structure of electrode prevents wasteful electric power consumption.
电极之低直流阻值可避免不必要之电力消耗。
The electrodes follow the ASTM Standard D257 entitled "DC Resistance or Conductance of Insulating Materials."
其电极满足ASTM标准d 257“绝缘材料的直流电阻或电导”的要求。
Relationships between DC resistance of CFRM and CFRC and curing age were researched using the two-probe method.
利用直流双电极法研究了碳纤维砂浆和碳纤维混凝土的导电性能与其龄期之间的关系。
The paper discussed the method of using active large-power DC standard resistor to verify DC resistance tester and analyzed its error.
阐述了有源大功率直流标准电阻器检定直流电阻测试仪的方法,对该检定方法进行了误差分析。
During the measuring of the DC resistance of a transformer's winding, the winding is equivalent to a resistance-inductance series circuit.
在进行变压器绕组直流电阻的测量时,变压器绕组可以等效为一个由电阻、电感组成的串联电路。
Through a reasonable winding arrangement of CVT, the DC resistance can be reduced largely, hence the on load error characteristic can be improved.
通过改变CVT中压变压器绕组的布置方式,可降低其直流电阻,从而改善负载误差特性。
In a coil antenna system using the coil component, the value of Q can be adjusted to a desired level without an increase in a DC resistance value.
在采用本发明的线圈部件的线圈天线系统中,不增大直流电阻值而能够将Q值调整为所期望的值。
An accurate, quick and automatic measurement scheme is presented to solve the key problems in measuring DC resistance of main transformer windings.
针对牵引变压器绕组的直流电阻测量中的一些关键技术问题,提出了精确、快速、自动的测量方案。
The DC resistance tester is designed, by combining the technical requirements of the locomotive power generators winding test and Microcontroller technology.
根据机车主发电机绕组测试检修的技术要求,结合单片机技术,开发出机车主发电机直流电阻测试仪。
The paper introduces the saturable magnetic circuit method to measure the DC resistance of low voltage winding of large-size transformer with a practical application.
介绍了一例用助磁法测量大型变压器低压侧直流电阻的接线、仪器、测试过程和测试结果,讨论了助磁法运用于实际应注意的一些问题。
The calculating result shows that the welding current of 3-phase DC resistance weld is continuous, and the changing of induction reactance has little influence on it.
计算结果表明:三相次级整流电阻焊焊接电流基本上是连续的,负载感抗变化对其影响很小。
The method to verify DC resistance box automatically using digital multipurpose meter is introduce as well as the software and program, and the error analysis is done.
简要介绍了直流电阻箱半自动检定系统的构成、工作原理、测量方法及软件设计,并对该系统的可行性进行了验证。
It is found that ESR decreases with decrease of the active dielectric layer thickness, and DC resistance decreases with the increases of active dielectric layer number.
研究表明,等效串联电阻随着有效介质层厚度的降低而降低,直流电阻随着有效介质层数的增加而降低。
This requirement for large capacitance yields a power supply with less internal DC resistance; that is to say, one providing close to the performance of an ideal power supply.
这一规定出土了大量电容直流电源内部阻力较少;也就是说提供一个理想的表现接近电源。
Demonstrating Electric Meter, Model J0403 has 14 ranges. It can serve as current detector in the experiment demonstration, measurement of micro current. DC voltage and DC resistance.
J 0403型高中演示电表共有十四档量程,供教学演示实验中作检流计,测量微小电流,测量直流电压、直流电阻。
The relationships between DC resistance of carbon fiber reinforced mortar (CFRM) and carbon fiber reinforced concrete (CFRC) and curing age were studied by using the two-probe method.
利用直流双电极法研究了碳纤维砂浆(CFRM)和碳纤维混凝土(CFRC)的导电性能与其龄期之间的关系。
It enables the use of very low DC resistance (DCR) power inductors (0.3m?) by enhancing the SNR of the current sense signal to maximise converter efficiency and increase power density.
它允许使用非常低的直流电阻(DCR)功率电感(0.3米?)通过增强电流检测信号的SNR最大化变换器效率和增加功率密度。
The technical index and calibration level of the DC resistance voltage divider are analyzed, the uniform calibration method is proposed, the uncertainty is analyzed and the checking method is given.
分析了直流电阻分压箱的技术指标和校准水平,提出了等分测量的校准方法,进行了不确定度分析,给出了验证方法。
Audio watermarking that modulates DC level shift according to watermark has wonderful low pass and noise resistance performance.
根据水印调整直流电平偏移的音频水印算法具有很好的低通和抗噪性能。
The variation of seepage velocity, resistance coefficient, reservoir permeability and oil recovery in porous media of water-drive reservoir in direct current (DC) electric field are studied in detail.
实验研究了外加直流电场作用下水驱油藏多孔介质中的流体渗流速度、阻力系数、储层渗透率及原油采收率的变化特性。
In order to add the DC model of RTD into SPICE circuit simulator and design RTD circuits, parameters of current-voltage equation were extracted after considering the effect of series resistance.
并且给出了计入串联电阻影响后进行电流电压方程参数提取的方法,以便把共振隧穿二极管直流模型加入电路模拟软件中进行电路设计。
This paper describes a new method by which the positive, negative resistance to ground of DC bus and branch could be tested precisely by mere use of universal instruments and standard resistors.
提出一种仅用万用表和标准电阻就可以准确测量出直流母线和支路负荷正对地电阻、负对地电阻的新测量方法,这种方法能准确查找绝缘低故障支路;
In this paper, a 16 stages digital controlled DC stabilized voltage source based on LM317 is designed. Selection and realization of the adjustable resistance in this source is introduced.
以三端稳压集成电路LM317为基础,设计了一种16级数控直流稳压电源,介绍了该电源中可调电阻的选取与实现。
The resistance and Seebeck voltages used to calculate the ZT and the maximum temperature difference are measured using a testing system composed of a DC pulse generator and a DAQ card.
利用一个由恒流脉冲发生器和数据采集卡组成的简单测试系统测得制冷器在小电流下的电阻电压和塞贝克电压,通过这两个电压推导出ZT值、最大制冷温差。
The drifts and deviations of National DC (artifact) Resistance Standards by comparison with Quantum Hall Resistance (QHR) since 1990 is reported.
报告了自1990年以来通过与量子化霍尔电阻比对考核的国家直流电阻(实物)基准的长期漂移率及偏差。
The part of EDM dressing A resistance was jointed after the output of DC pulse part to realize the EDM dressing of grinding wheel.
用于电解修锐前砂轮形状和表面精密修整的电火花修整部分将电源直流脉冲电解部分的输出端串连一个限流电阻就形成了电火花修整部分。
After comparing and analyzing several conventional insulating resistance measuring method such as AC method, DC creepage method and so on, their shortcomings in use are pointed out.
对直流系统常用的几种接地电阻测试方法如交流法、直流漏电流法等进行了比较分析,指出了它们在使用中的缺点。
The output power mechanism of a separately excited DC motor can be equivalent to a variable resistance, which is parallel with the armature winding of the motor.
若将他励直流电动机输出功率的机理等效为一个与电动机电枢绕组并联的可变电阻,可以得到他励直流电动机可变电阻型等效电路图。
The insulation methods of several DC systems are compared and analysed. A ping-pang variable bridge measurement is adopted. The ex - act on line detection of grounding resistance is realized.
比较分析了几种直流系统常用的绝缘检测方法,采用乒乓式变电桥测量法,实现了接地电阻的准确在线测量。
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