查询词典 EMF

The results of the research show that self synchronization closed loop control system through detecting the position of zero value of rotating EMF is new and feasible. In principle it solves the problem how to obtain the accurate rotor position of a step, motor from motor parameters. In design it makes the system simple and practical.

研究结果表明，本文研究的永磁感应子式步进电动机自同步闭环系统在原理上，通过旋转电势过零检测解决了能否利用电机参数获得准确的位置控制与自同步运行问题；在方法上采用数字信号逻辑辩识增强了系统的稳定性，解决了系统实现能否简单实用的问题。

A theoretical analysis is presented for the factors influencing maximum self-induced EMF in transient process in RL circuit.

对RL电路的暂态过程中影响自感电动势最大值的因素进行了理论分析，并应用不同的仪器和方案进行了实验验证。

It is applicable to the BLDCM with trapezoidal back EMF waveform.

论述了一种用三次谐波检测转子位置的新方法。

It is not possible to turn back the clock, but it is possible to provide EMF protection for ourselves and our children.

这是不可能的时钟倒转，但它可能提供电磁场保护我们自己和我们的孩子。

In this paper, the influence of rotor-skewing on the machine performance, such as the unbalanced radial force, cogging torque and back EMF, is analyzed, with two different prototypes being comparatively studied.

分析了转子斜极对其不对称径向力、齿槽定位转矩和反电势等性能的影响，并用两种不同结构的电机进行对比研究。

Two resistances are adopted to detect the back-EMF signal on the unexcited phase instead of using the expensive Hall sensors.

仅藉由两个电阻量测三相马达未激磁端的反电动势讯号去获得目前马达的运转情况取而代之使用昂贵的霍尔感测器。

If the short circuit has a very low thermoelectric EMF, this can be used to verify input noise and zero drift with time.

如果输入端的短路点具有很低的热电动势，用这种方法就可以验证输入噪声和零点随时间的漂移。

The conventional back-EMF zero crossing method was restricted by hardware and control method,and to improve the detecting circuit reduce the influence.

常规反电势过零检测电路由于受到硬件及控制方法的影响，过零点信息不够准确而且有较大的滞后，通过对检测电路的改进来减小这种影响。

The paper present a kind of brushless DC torque motor with coreless armature, which haven t static friction torque , inferred method of calculating current, torque, EMF, and etc.

提出了一种电枢上无铁心的无刷直流力矩电机，该电机无静摩擦力矩。

With the development of EMF process, the perfect theoretical study is exigently needed to predict the final shape of parts, instruct and verify the forming system design.

由于电磁成形可以提高难成形材料的成形性并减小工件回弹，因此，可以克服这些材料的成形困难，促进其在轻量化结构中的应用[3]。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。