建立了一套电动势法测量电解质溶液中离子迁移数的实验装置。
A set of equipment was established for determining the transference Numbers of electrolyte solutions by EMF method.
反电动势法是检测无刷直流电机转子位置用的最简单、最常用的方法。
The "Back-EMF" method is the simplest and most popular method for detecting the rotor position in trapezoidal brushless dc motor.
手工方法处理电动势法测热力学函数的实验数据，很难得到满意的结果。
Manual disposal of the experimental data of the thermodynamic function measured with electromotive force can hardly achieve a satisfactory result.
本文采用感应电动势法和场量变换公式给出了计算二振子互阻抗的一般公式。
A general formula is given for calculating the mutual impedance be tween two dipoles by means of the induced electromotive method and the field transformation formula.
论文在介绍常用的无位置传感器无刷直流电机控制方法的基础上，详细分析了“反电动势法”无刷直流电机控制原理。
In this paper the common methods of sensorless control of BLDCM are introduced, and the principle of back-EMF method is illustrated in detail.
结合有代表性的研究工作评价了该研究领域中典型的研究测试方法，其中重点评价了化学平衡法和原电池电动势法用于此类研究的利弊。
The methods for experimental investigation, such as chemical equilibrium and EMF methods, are discussed in detail in conjuction with critical comments on typical research work.
利用气隙比磁导法建立了混合式步进电动机的磁网络模型，推导出谐波反电动势的表达式。
In this paper, the magnetic network model of hybrid step motor is established according to the air gap rate permeance method, and the expression of the harmonic back EMF is deduced.
用补偿法测电池电动势及内阻，并进行不确定度的估算。
The compensation method is used to measure the emf of cells and the estimated calculation of the uncertainty is conducted.
方波电流驱动的BLDC电机无位置传感器控制检测转子位置的最重要方法是反电动势检测法。
Detecting back EMF is one of the most important methods for the detection of rotor position in square wave current drive BLDCM sensorless control.
针对这种反电动势波形偏离理想波形的情况，本文提出了一种最优电流跟踪法来抑制转矩脉动。
Aiming to minimize the torque ripple in condition of non-perfect BEMF waveform, the dissertation present a optimum current tracking control technique.
然而，当变化的热电动势电压引起不准确的测量结果时，就应当使用Delta法。
However, if changing thermoelectric voltages are causing inaccurate results, then the delta method should be used.
本文采用反电动法控制永磁直流无刷电机，是通过检测反电动势过零点获得转子位置实现无传感器控制。
Using Back-EMF method to control BLDCM, it can realize sensor-free control method by detecting the zero point of EMF in this paper.
本文采用反电动法控制永磁直流无刷电机，是通过检测反电动势过零点获得转子位置实现无传感器控制。
Using Back-EMF method to control BLDCM, it can realize sensor-free control method by detecting the zero point of EMF in this paper.
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