Generally speaking, in the PMSM (Permanent-magnet synchronous motors) control system, mechanical sensor on the rotor shaft is required to detect the position and speed of the rotor.
一般来说，在电动机调速控制系统中需要在转子轴上安装机械传感器，测量电动机的速度和位置。
These reliable direct current generators provide a voltage output directly proportional to the rotational speed of the armature shaft and are specifically designed for speed control applications.
这款可靠的直流发电机可根据电枢轴的旋转速度直接提供电压输出值，该设计应用于速度控制应用领域。
The electronic line shaft system offers the newspaper printers a fast, reliable method of maintaining speed and registration control of printing presses.
电子动力轴系统为报纸印刷机提供一个快速可靠的方法，用于保持速度和注册控制印刷过程。
The paper presents a control method for High Speed Crank shaft Grinder with Mitsubishi a series of programmable controler.
介绍的是用三菱a系列可编程控制器在高速曲轴磨床上工件曲轴进行砂轮磨削的一种控制方法。
The secondary sheave rotation sensor (41) detects a rotational speed (54) of the output shaft (22d) and outputs to the control unit (9).
次级带轮旋转传感器（41）检测输出轴 （22）的转速（54）并将其输出到控制单元（9）。
The results show that for the common pump control methods, the third power relation between the pump rotate speed(water volume) ratio and the shaft power ratio is not true;
分析结果表明，对于常用的水系统控制方式而言，水泵转速（流量）比与轴功率比的三次幂关系不成立；
The results show that for the common pump control methods, the third power relation between the pump rotate speed(water volume) ratio and the shaft power ratio is not true;
分析结果表明，对于常用的水系统控制方式而言，水泵转速（流量）比与轴功率比的三次幂关系不成立；
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