查询词典 motor-driven

This paper based on universal characteristic curve of truck motor,analyses the optimum seeking method of transmitting ratio of power takeoff in order that power should be taken off according to need and motor should work economically.

以汽车发动机万有特性曲线为基础，以按需取力、经济运行为目的，探讨了取力器传动比的优选方法，这对保证发动机与工作装置的优化匹配具有实用价

Because brushless motor has no gears or deceleration devices, reducing the unreliability of the motor wear and tear.

由于无刷电机没有齿轮或减速装置，减少了电机磨损的不可靠性。

Article 14 The State applies a system of compulsory discarding unserviceable to motor vehicles, and prescribes different standards for discarding motor vehicles as unserviceable in light of their safety and technical conditions as well as their different purposes of use.

第十四条国家实行机动车强制报废制度，根据机动车的安全技术状况和不同用途，规定不同的报废标准。

Vector diagram of motor is the important foundation on designing winding spread scheme and testing motor wiring correctness.

电机向量图是设计绕组展开图和测试电机接线正确性的重要依据。

In this paper, according to the equation of voltage vector of single-phase motor operating at symmetrical condition, author presents a new voltage-vector PWM method of variable frequency control for single-phase motor. In system, the voltage vector is used as a control parameter.

本文根据单相电动机对称运行时的合成电压矢量方程，提出了以合成电压矢量为控制量的单相电动机电压矢量式PWM变频调速控制方法，并进行了计算机仿真及制作了单相变频器。

According to the principle of vector control used in an asynchronous motor, a simulation model of the asynchronous motor in electric vehicle and vector control system in rotor flux orientation was established with the help of Matlab/Simulink software.

根据异步电机矢量控制原理，建立了电动汽车用异步电机的仿真模型和转子磁场定向下的矢量控制系统模型，并在Matlab/Simulink软件环境下对其进行建模。

A low frequency rolling bearing fault diagnosis method based on local projective noise reduction;2. According to characteristics of both the vibration signals and the stator currents when appering a fault in the rolling bearing of the induction motor,Park vector module signal of the three-phase current is calculated,and the envelope of vibration signals from the rolling bearing of the motor is analyzed.

根据感应电机轴承发生故障时的振动信号特性以及定子电流特性，求出三相电流的Park矢量模信号，并将其与电机滚动轴承振动信号经解调处理后的包络信号进行融合分析，可以从振动信号与电流信号的融合谱图中有效地提取轴承故障特征信息，并将其作为故障识别的依据。

Is coaxial actuates a alternator based on Simens PLC and its the network direct current velocity modulation system by a direct current motor, the direct current motor to actuate with the direct current velometer and to be loaded with revolves the encoder examination rotational speed; The generator electricity generation voltage after the numeral demonstrated the table demonstrated and delivers to the PLC simulation quantity load module.

在工业控制过程中，继电接触器控制系统因其没有运算、处理、通讯等功能，而不能完成复杂的控制方式，20世纪60年代PLC控制系统应运而生，它综合了计算机技术、自动控制技术和通信技术等现代科技，是当今工业自动控制的标准设备之一；70年代以后，又相继出现了集散控制系统DCS、现场总线控制系统FCS，现在以及今后很长一段时间内会是三种控制方式并存的局面，在这一背景下该文分析PLC控制的现状及发展前景。

The principle of voice coil motor is analyzed, and the mathematical model is built. The motor's transfer function is digitized.

分析了音圈电机的工作原理，建立了音圈电机的数学模型，并对其传递函数进行数字化。

Voice coil motor: motor closedloop control for accurate positioning the head on the track.

音圈电机：闭环控制电机，用于把磁头准确定位在磁道上。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。