直流电机

Meanwhile, it adopts special reductor with rare earth dual DC motor to complete chain transmission and updraft processs, Due to it, insure the product's quality and produce all kinds of specifications of oxygen-free copper rod, copper bar and copper pipe and etc.

本机组可分别采用单体、双体、三体工频熔铜炉，三相平衡，节电，节能，铸杆规格，节距、速度均可在设定范围内任意调节，机组按四立柱装配，采用特种减速器稀土双排直流电机一字形分别打链传动，上引，确保产品质量并能专业生产各种不同规格无氧铜杆、铜排、铜管等。

For the reason of drawback of DC motor, the system adopted AC frequency conversion speed regulation.

为克服直流电机调速的缺点和提高性价比，系统采用了交流变频调速。

It adopted stepping electronic rheostat and thyristors, and had developed new direct-current motor adjustable-speed circuit.

采用步进式电子变阻器和晶闸管研制成的新型直流电机调速电路能使速度逐级平缓地变化。

The torque ripple in SRM are relatively higher compared to induction machines. In this paper, based on the experimental data of static torque characteristic, a fuzzy-neural network is applied to learning it's inverse model off line, then according to the predefined torque distribute function, optimal current profile is real-time gained by the FNN on line, which results in a linear, decoupled, low ripple control of torque. The performances of the proposed method is demonstrated by computer simulation results.

与传统交、直流电机相比，SRM的一个最突出的缺点是其驱动系统转矩脉动比较严重，为此，论文提出了一种基于模糊神经网络转矩逆模型的SRM转矩控制方案，并设计了SRM滑模电流控制器，理论分析和仿真结果表明，基于滑模电流控制器的SRM电动机转矩逆模型控制策略能够有效的解耦、补偿和抵消SRM非线性转矩脉动特性，有效的控制SRM相转矩按期望相转矩变化，从而实现了SRM高性能、低脉动转矩控制。

In this paper,we simulate automobile's self-aligning torque during travelling by building a motor control system which is controlled by microcomputer.

提出基于单片机的直流电机控制系统模拟汽车行驶过程中受到的回正力矩。

In this system,self-aligning torque is calculated by computer and sent to microcomputer,direct current motor's output is controlled by microcomputer through PWM technology,and we simulate self-aligning torque.

该系统中上位机实时计算出汽车受到的回正力矩，通过串口发送至单片机，单片机通过PWM控制直流电机的输出力矩以达到模拟的目的。

Brushless DC motor ; four-switch converter ; current sensor ; phase current sensing ; operating mode ; operating submode ; phase current regulation

无刷直流电机；四开关逆变器；电流传感器；相电流检测；工作模式；子工作模式；相电流调节

The main products have three-phase AC / DC motor.

主要产品有三相交流/直流电机。

Micro-force sensor, displacement sensor, micro-DC motor and trephine is integrated. Small size and perfect performance is its key features.

末端执行器集成了微力传感器、位移传感器、微型直流电机和环钻，具有体积小、功能完善的特点。

The control system of intelligent robot is realized based on infrared technology and single-chip microcontroller technology. It adopts unidirectional PWM direct current motor as the control mode,and be guided by the line with good contrast between light and dark areas.This robot realizes adjusting step, speaking, noise controlling, ground detecting etc.

该机器人控制系统基于红外技术、单片机等技术，采用控制方式为单向PWM的直流电机，以与地面颜色有较大差别的线条作引导，实现了步行、步伐调整、语音、声控、地面探测等功能。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。