查询词典 motor control

The speed-sensorless vector control of induction motor is one of the hot topics in electric-drive field, whose main study is to adopt a kind of quick and effective method to accurately observe the rotor flux and rotor speed in the condition that the parameters vary and certain and uncertain disturbance exists.

感应电机的无速度传感器矢量控制是目前电气传动领域研究的热点之一，其主要研究内容为在存在参数变化、扰动及各种不确定性干扰的情况下，采用一种快速、有效的方法对转子磁链、转子转速进行较为准确的观测。

At the same time, the speed of diesel engine, the control rod travel of accelerator and its change rate are chosen as input parameters, the current position of step motor's rotor is chosen as the feedback parameter.

考虑到控制系统结构的简化及控制的可靠性，电控系统的控制策略确定为以柴油机转速、油门位置及油门变化率作为输入参数，同时以步进电机实际运行位置作为反馈参数的开环控制方式。

By means of analyzing the recent technical level of domestic turbine governor researching manufacturers, this paper summarizes from following aspects: the governor's system structure modes, the microcomputer adjustors composed of industry control computers, dual-redundant computer issue, friendly man-machine interfaces with plenty contents, the governor's computer analog test functions, hydraulic components adopted the industry standard such as a proportional servo valve or an electrohydraulic converter composed of a servo motor, the setup of mechanical feedback and mechanical opening limited mechanism, the governor's generally raised oil pressure grade.

通过分析国内水轮机调速器研制生产厂家的最新调速器技术水平，从调速器的系统结构模式、以工业控制计算机构成的微机调节器、计算机双机冗余问题、友善且内容丰实的人机界面、调速器的计算机仿真测试功能、采用工业标准液压件如比例伺服阀或伺服电机构成的电液转换部件、机械反馈和机械开度限制机构的设置、普遍提高的调速器油压等级等方面进行了总结。

Restricting overloading protection PTC Thermistor is mainly used in the remote alternating machinery, remote control telephones, distributing frames, safe-guard units, voltage transformers, crystal conductors, automats, cars, washing-machines, fluorescence lamps, computer peripheral equipments, motor starters, household appliances, electronic instruments and micro power equipments at present.

程控交换机、程控电话、配线架、保安单元、变压器、晶体管、自动售货机、汽车、洗涤机、荧光灯、计算机外设、电机启动器、家用电器、电子仪表及小型电源设备中。

The direct current motor drags along to begin the claw and bedrocks to revolve, the position signal from revolve the code dish and near to the switch feedback to host of PLC;The electromagnetism valve control the machine hand open and close, thus carry out the function of the machine hand precision work.

本课题拟开发的物料搬运机械手可在空间抓放物体，动作灵活多样，可代替人工在高温和危险的作业区进行作业，并可根据工件的变化及运动流程的要求随时更改相关参数。

The advantage of the product is separation process evenly,easily control,and feeding chromes adjustable high,high concentrate.recovery ratio high,less space,water saving,simplestructure,no motor,dealing amount large,fix easily,convenient operated,small inves etc.

本设备具有选别过程稳定、容易控制，给矿浓度允许变化范围大，富集比高、回收率高，占地面积小、耗水量少，结构简单，无需动力，处理量大，安装简易，操作方便，投资小见效快等优点。

Motor protection and control, Contactors from 6 to 2750 A

电动机保护及控制， 6 - 2750 A 交直流接触器

The function of the control system is starting and controling motors,checking and measuring the number of the black lines,measuring the distance and motor speed,calculating the time,and displaying any required digitals,etc.

主控制系统的功能主要是启动并协调电机运转，测量行程转速，计算行驶时间，实时显示所需的各种参数等。

PWM's field of application includes Class D audio amplifiers, DC motor speed control, and light dimmers common in homes.

脉宽调制的应用领域包括 D 类音频放大器，直流电机调速控制，并根据调光器，在共同的家园。

At the same time, the company agent well-known brand in Germany ROSENBERG fan, ROSENBERG specializing in the production of 100% non-grade speed external rotor fan Volute purification system with no fan, belts and motor Direct drive centrifugal fans, axial fan, roof fan, pipe fan , kitchen ventilation systems, fresh air units, energy recovery systems, air-conditioning units and matched control product line.

同时，公司代理德国著名品牌ROSENBERG风机，ROSENBERG专业生产100%无级可调速外转子风机、净化系统用无蜗壳风机、皮带传动及电机直联离心风机、轴流风机、屋顶风机、管道风机、厨房通风系统、新风机组、能源回收系统、空调机组及相配套的控制产品系列。

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。