查询词典 motor control

When high-strength sheet metal straightening,it will have a Turtle phenomenon,its process control model is obviously inadequate hydraulic pressing,the Shaft of straightening machine Often broken and the work of roller bearings damage Frequently.so it is necessary for the fuel tank pressure,displacement and the roll rotation of the motor current,torque drive signal for analysis.

当矫直高强度薄板时，会产生龟背现象，其工艺控制模型中液压压下明显不足和矫直机传动轴经常断，工作辊轴承经常损坏问题，于是很必要对液压缸压力，位移和各辊的电动机转数，电流，传动扭矩信号进行分析。

In this system the motion controlling centers upon regulating the speed of wire feeding and movement of lead screw in each direction.Four motors separately drive the wire-feeding tape roll and the lead screw move respectively following their directions of X, Y, Z axis. If all the motors are controlled by 89C51 directly,it will rise great difficulty for software and hardware implementation. So the suggested solution is to combine the microcomputer with stepper motor driver and control of their motion.

在本系统中运动控制的关键即送丝与各丝杠移动的调节，由四个电机分别驱动X，Y，Z轴方向的丝杠行走以及送丝操作，运动控制部分如果用89C51直接驱动各电机则在软件和硬件实现上都比较困难的，所以选用单片机与步进电机驱动器结合起来控制它们的运动。

Aimed at the problem of multi-motor system synchronized switching directionprocess control, this dissertation studied the reliability and stability of the wire winding system which directly influenced on stability of roller wire speed and performance of main axis transmission system. Mathematical model of transmission system is built, and main parameters of transmission system are designed byresearching each essential factor which influences sensitivity and precision of transmission system.

针对高速走线换向过程控制问题，分析了加工辊走线速度和主轴传动系统的性能对走线系统的安全性和稳定性的影响，建立传动系统数学模型，研究影响传动系统灵敏度、精度及抑制线速度扰动的各个要素，综合设计传动系统。

Secondly, the structure and operating principle of imitation of the wind turbine based on DC motor were formulated and the control strategies were introduced.

第三，用Ansoft仿真软件建立了风力机模拟和SRG系统的仿真模型，分别对风力机特性的直流电动机模拟系统和SRG开环系统、电压闭环系统的建压过程及变负载、变转速动态过程、SRG风力发电系统最大风能追踪控制方案进行仿真分析，结果与理论吻合较好。

And it uses stepped motor electric wind gate, via its impulse step to control the wind gate, to realize step-less adjustment and save energy.

本发明采用步进电机型电动风门，通过步进电机的脉冲步数来控制风门的任意开度，从而实现风量的无级调节，达到精确控温的目的，节省能量。

Cities also create distinct microclimates. Bricks, concrete, asphalt, and other building materials absorb and hold heat, and buildings block wind flow. Motor vehicles and the climate control systems of buildings release large quantities of heat and pollutants. As a result, cities tend to have more haze and smog, higher temperatures, and lower wind speeds than the surrounding countryside.

城市也引起有区别的小气候，砖、混凝土、柏油和其它建筑物质吸收和保有热，还有街区风的流动，机动车和建筑物控制气候系统释放大量热和污染物，结果，城市有更多霾和烟雾，更高的气温和更低风的速度比起乡间环境。

Cities also create distinct microclimates. Bricks, concrete, asphalt, and other building materials absorb and hold heat, and buildings block wind flow. Motor vehicles and the climate control systems of buildings release large quantities of heat and pollutants. As a result, cities tend to have more haze and smog, higher temperatures, and lower wind speeds than the surrounding countryside.

城市也会产生明显的小气候，砖、混凝土、柏油以及其他建筑材料吸收以及维持温度还有阻挡对风的流动力，而马达工具和温度控制系统会释放出大的温度能量和污染物，因此，程式与周围农村比较有较多的薄雾与烟雾、高温度和较低的风速。

An auxiliary power motor with improved structure includes wheel shell, rotor ring, stator plate, central wheel axle and control circuit.

一种改良结构的辅助动力马达，包括轮壳、转子环、定子盘、中心轮轴及一控制电路，转子环的内环面埋设磁铁，定子盘周围固设环形矽钢片，其外环面具有多个T形齿牙，其齿数为非转子环磁铁数的公倍数，矽钢片设有三相星形线圈绕组，且于定子盘电机最佳启动角度处设有霍耳元件组；借此将定子盘固设于中心轮轴，令轮壳夹设住转子环并套设于中心轮轴两侧，当转子环旋转时，即可降低磁极间的钝齿转矩，令电动车行进更加顺畅无噪音。

In the project of mechanical structure,we bat around the error and metrical way of Crank Shaft,describe the elements of the Synthetically Measure Instrument Of Crank Shaft and the way to realize it. In the project of hardware"s control,we analyze the displacement sensor,the data acquisition card,stepping-motor and it"s controller.

在硬件的控制部分，我们主要对所用的位移传感器和数据采集卡、以及步进电机及其驱动器进行了分析，并提出了硬件控制部分的设计方案，进行了硬件控制部分的接线、调试工作。

Lack of the specific voluntary movement control interventions of distal part hand muscle in stroke patients. Therefore, present study tried of electromyography triggered functional electrical stimulation make patient performing wrist and finger extension voluntary movement and have improvement of the motor learning.

传统的中风患者上肢的治疗介入缺乏上肢远端之手部肌肉的特殊主动活动的运动训练，因此加入肌电回馈引发功能性电刺激训练可使患者主动参与动作，加速运动学习的效果。

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。