这些高频率与离心机的转速相对应；美国对能够以600赫兹以上频率运行的频率转换器驱动的出口进行了严格管控。
These high frequencies correspond to the rotation speeds of centrifuges; America tightly controls the export of frequency converter drives able to operate at frequencies above 600 Hz.
因此，我们可以用星星的自转速度及速率作为衡量它们年龄的计时器。
And so we can use the spin rate, the rotation rate of a star, as a clock to measure its age.
立方直升机的这种配置让他可以像直升机一样盘旋，但在向前飞行时，主旋翼的转速可以将下来，让两侧的机翼提供升力，在此情况下，两台螺旋桨推进器就能发挥大作用了。
This means it can hover like a helicopter, but when flying forwards can reduce the speed of the main rotor and let the wings provide part of the lift. Its propellers give the extra oomph.
现在，大多数常用的企业硬盘驱动器(HDD)都受到磁头移动速度、盘片旋转速度和查找延时的限制。
Now, the most commonly used enterprise hard disk drives (HDDs) are limited by the rate of head movement, the speed of the spinning platter, and seek latency.
直接控制扭矩而不是电机转速范围，可以使得电机和变频器产生足够高的扭矩使得压机可以回复到原来的位置。
Direct control of torque over the motor speed range is provided by the drive, which helps the motor and drive generate torque levels high enough to cycle the press back to ready position.
更令人惊叹的是，这个感应电动机转速能达到每分钟6000转并且能产生最高为295磅英尺（400牛顿米）的扭矩，也就是说传统的变速器的作用将减少。
More impressively, the motor’s 295lb-ft (400 newton-metres) of torque is available from rest to nearly 6, 000 revolutions per minute, which eliminates the need for a conventional gearbox.
更令人惊叹的是，这个感应电动机转速能达到每分钟6000转并且能产生最高为295磅英尺（400牛顿米）的扭矩，也就是说传统的变速器的作用将减少。
More impressively, the motor's 295lb-ft (400 newton-metres) of torque is available from rest to nearly 6,000 revolutions per minute, which eliminates the need for a conventional gearbox.
涡电流隔离器自从20世纪90年代早期就开始得到使用，它是由长瓶状转鼓内的一个快速旋转磁力转子组成的，转鼓的旋转速度会较慢。
Eddy-current separators, in use since the early 1990s, consist of a rapidly revolving magnetic rotor inside a long, cylindrical drum that rotates at a slower speed.
触发叶轮随发动机转速而旋转，使得转速传感器或拾波线圈产生与发动机转速和活塞位置相对应的触发电压脉冲。
The trigger wheel rotates with engine RPMs and causes the speed sensor, or pickup oil, to produce triggering voltage pulses that correspond to engine speed and piston position.
电子控制单元使电流通过初级绕组直到感知到一个从转速传感器或拾波线圈产生的触发电压脉冲。
The electronic control unit allows current to flow through the ignition coil primary winding until it senses a triggering voltage pulse from the speed sensor, or pickup coil.
从发电机转速、功率和直流母线电压之间的相互关系出发，提出利用直流母线电压进行转速观测实现无速度传感器。
According to the relationship of rotational speed, power and DC bus voltage, observing rotational speed by using DC bus voltage is proposed to realize none direct speed measurement.
转速的高低还与采用的传感器的灵敏度有关，如果采用灵敏度高的传感器，就可以采用较低的转速。
Speed is also related to the sensitivity of the sensor used, if the high sensitivity of the sensor, you can use a low speed.
电子控制单元。包括由转速传感器控制的开关晶体管，用来断开或接通初级电路。
Electronic control unit. Contains a switching transistor controlled by a speed sensor and is used to open and close the primary circuit.
压力过大要求变频器降低电机转速，必要时停止部分寿力空压机配件。
Pressure requirements inverter reduce the motor speed and, when necessary, stop part sullair air compressor parts.
标准编码器分辨率为2048转速每行。
由于转速传感器是汽车防滑刹车控制系统（ABS）的基本组成部分，因此该观测器可与ABS结合工作，低成本的实现轮胎故障监测。
Since the wheel speed sensor is a basic component of normal anti-lock brake system (ABS), the observer proposed could be easily realized in low cost within the anti-lock brake system.
负载控制加载器，模拟实际工况。也能通过变频器控制电机输出转速。
Loader was controlled with loading, and actual working state was simulated, the motor rev was controlled through transducer.
根据矿井通风机的特性，使用变频器进行转速调整以达到调节风量的目的，且有很好的节能效果。
The use of frequency convert to regulate the speed of rotation according to the character of mine fan can reach the goal of the modulation of air flow and have a very good effect of saving energy.
提出了基于神经元的用于感应电机矢量控制的自适应磁链和转速控制器。
The adaptive flux controller and speed controller based on neuron are presented for the induction motor vector control.
介绍车用转速传感器的常见类型、基本工作原理、发展趋势以及在汽车上的应用。
The common types, basic working principle, developing trend of the automotive speed sensor and its application are introduced here.
对采用微分几何方法设计永磁同步电机转速控制器的可行性进行了研究。
The feasibility of designing controller for control permanent-magnet synchronous motor speed is proposed by using differential geometry theory.
这种低转速搅拌器是剪切敏感产品的理想选择。底部和侧部刀片提高快速传热，减低罐壁产品的烧伤或冻结。
This low speed agitator is good for shear sensitive products. Bottom & side blades enhance rapid heat transfer reducing local burn-on or freeze-up of product on tank walls.
针对“发动机转速传感器总检台”的实际系统，论述了硬、软件设计的背景、设计原理和设计思想。
The paper expounds the background, principles and framework for designing the hardware and software of the synthetic test system of automobile engine speed sensor.
针对“发动机转速伟感器总检台”的实际系统，论述了硬、软件设计的背景、设计原理和设计思想。
The paper expounds the background, principles and framework for designing the hardware and software of the synthetic test system of automobile engine speed sensor.
无速度传感器转速观测能有效提高系统的冗余，使系统硬件设计得以简化，是目前电机控制研究热点。
Sensorless speed observation can increase system redundancy effectively and can reduce the hardware design complexity, which becomes a focus of current research works.
ST420是一款模拟输出轴转速传感器。
一些压缩机另外配有一个转速感应器。
Some compressors are additionally fitted with a revolution speed sensor.
本文还介绍了利用遗传算法搜索PID转速控制器最优参数的方法，并给出了实验结果。
The genetic arithmetic was used to optimize the parameters of the speed PID controller. At last the experimental result was given.
本文还介绍了利用遗传算法搜索PID转速控制器最优参数的方法，并给出了实验结果。
The genetic arithmetic was used to optimize the parameters of the speed PID controller. At last the experimental result was given.
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