BEMF的例句大全

Considering the BEMF very little in the process of motor starting, the Back-EMF method is expired, combined with the rotor pre-setting method and the variable-frequency increase-voltage method, this paper realizes the open-loop start of motor using DSP.

针对电机起动时反电势比较小，很难通过反电势法来检测转子位置的情况，本文结合预定位法和变频升压的电机启动方式，利用DSP实现电机的开环软启动。

Firstly, the dissertation presents principles of commutation torque in the condition of ideal BEMF waveform.

本文首先分析了影响理想的方波型无刷直流电机换相转矩脉动的因素,包括:调制方式, 直流侧电压,重叠换相角等.

There are different mechanisms of therapeutic effect of BEMF and estrogens.

与雌激素的治疗作用存在不同机制.

Aiming to minimize the torque ripple in condition of non-perfect BEMF waveform, the dissertation present a optimum current tracking control technique.

实际中一般是这两种情况都存在。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。

By electromagnetic field finite element simulation, the influence of cogging structure and pole width on the BEMF waveform was pointed out.

通过电磁场有限元仿真，指出电机齿槽结构和磁极宽度对反电势波形的影响。

Rats of group C were exposed to BEMF, 1 h/ d.

C组暴露于BEMF治疗，1h/d，1次/d。