查询词典 electromotive force

For the power in case of a power failure, back electromotive force of a spindle motor can be utilized.

对于在电源故障情况下的电力，可利用主轴电机的反电动势。

A current detection method is also proposed which is based on the BLDCM back electromotive force.

通过比较几种常用的电流检测方法，文中还探讨了一种基于无刷直流电动机反电动势的电流检测方法。

Actually these two graphs distinguish the physical essence issue of back electromotive force.

这两个图实际上是鉴别反电动势的物理本质问题。

The principle of the back electromotive force detection method is analyzed. The detection circuit is designed, and the problems of its application and solutions are studied in detail. This will improve the practical use.

为此本文在分析了无刷直流电动机反电动势检测方法的原理后设计了反电动势检测电路，并详细分析了在实际应用中存在问题，给出了解决的方法，为其实际应用奠定了基础。

A processor generates the random number in relation to a back electromotive force value.

处理器生成关于反电动势值的随机数。

On this basis,back electromotive force without load and with load is researched,simulated and analyzed,and cogging torque is analyzed and calculated in different dimensions of magnetic steel.

在此基础上，仿真了空载和负载下的电机反电动势，并且对不同磁钢尺寸下的定位力矩进行了分析计算。

The theory of electromagnetic field and the method of finite elements are used in precise calculation of back electromotive force in the traditional design of brushless DC motor.

采用人工神经元网络理论则可以有效地解决计算的准确性与计算量之间的矛盾。

A sensorless BLDC motor system with novel rotor position detection method based on back electromotive force and zero crossing is presented.

通过仿真结果证明，实时的改变PID参数值能够提高电机控制的性能，适应高精度伺服系统的需求。

Results indicate that the fluctuation of back electromotive force...

计算表明，受电枢反应和换向电感的影响，反电动势有较大波动，定位力矩的大小同磁化方向长度和极弧系数成正比关系。

In addition, the primary causation for the problem that phase current during reverse braking process out of control is a short loop by the back electromotive force.

同时，针对反接制动时电流无法控制的问题，该文指出反电动势短接回路的存在是造成再生电流无法控制的主要原因。

Objective To investigate the relationship between ovum fertilization rate and sperm morphology, acrosome reaction in IVF and to explore the influence of parameters of sperm on fertilization rate.

目的 研究体外受精(in vitro fertilization，IVF)中精子形态、顶体反应与卵子受精率之间的关系，分析精子各参数在IVF受精率方面的参考意义。

A: I hear Mr. White wants to run for the Presidency!

我听说怀特先生要参加总统竞选！