自动化专业英语4
自动化专业英语原文和翻译
自动化专业英语原文和翻译Automation in the Manufacturing Industry: An OverviewIntroduction:Automation plays a crucial role in the manufacturing industry, revolutionizing production processes and enhancing efficiency. This article provides an in-depth analysis of the concept of automation in the manufacturing sector, highlighting its benefits, challenges, and future prospects. It also includes a translation of the text into English.Section 1: Definition and Importance of AutomationAutomation refers to the use of technology and machinery to perform tasks with minimal human intervention. In the manufacturing industry, automation is essential for streamlining operations, reducing costs, and improving product quality. It allows companies to achieve higher production rates, increased precision, and improved safety standards.Section 2: Benefits of Automation in Manufacturing2.1 Increased ProductivityAutomation enables manufacturers to produce goods at a faster rate, leading to increased productivity. With the use of advanced robotics and machinery, repetitive tasks can be performed efficiently, allowing workers to focus on more complex and creative aspects of production.2.2 Enhanced Quality ControlAutomated systems ensure consistency and accuracy in manufacturing processes, leading to improved product quality. By minimizing human error, automation reduces defects and variations, resulting in higher customer satisfaction and reduced waste.2.3 Cost ReductionAutomation helps in reducing labor costs by replacing manual work with machines and robots. Although initial investment costs may be high, long-term savings are significant due to increased efficiency and reduced dependence on human labor.2.4 Improved Workplace SafetyAutomation eliminates the need for workers to perform hazardous or physically demanding tasks. Robots and machines can handle tasks that pose risks to human health and safety, thereby reducing workplace accidents and injuries.2.5 Increased FlexibilityAutomated systems can be easily reprogrammed to adapt to changing production requirements. This flexibility allows manufacturers to respond quickly to market demands, introduce new products, and customize production processes.Section 3: Challenges in Implementing Automation3.1 Initial InvestmentImplementing automation requires substantial capital investment for purchasing and integrating machinery, software, and training. Small and medium-sized enterprises (SMEs) may face financial constraints in adopting automation technologies.3.2 Workforce AdaptationAutomation may lead to job displacement, as certain tasks previously performed by humans are now handled by machines. Companies need to provide training and re-skilling opportunities to ensure a smooth transition for their workforce.3.3 Technical ComplexityAutomation systems often involve complex integration of various technologies, such as robotics, artificial intelligence, and data analytics. Companies must have skilled personnel capable of managing and maintaining these systems effectively.Section 4: Future Trends in Automation4.1 Collaborative RobotsCollaborative robots, also known as cobots, are designed to work alongside humans, assisting them in tasks that require precision and strength. These robots can improve productivity and safety by working in close proximity to humans without the need for extensive safety measures.4.2 Internet of Things (IoT) IntegrationThe integration of automation systems with the Internet of Things allows for real-time monitoring and control of manufacturing processes. IoT enables seamless communication between machines, sensors, and data analytics platforms, leading to predictive maintenance and optimized production.4.3 Artificial Intelligence (AI)AI technologies, such as machine learning and computer vision, enable automation systems to learn and adapt to new situations. AI-powered robots can analyze data, make decisions, and perform complex tasks with minimal human intervention, revolutionizing the manufacturing industry.Conclusion:Automation has become an integral part of the manufacturing industry, offering numerous benefits such as increased productivity, enhanced quality control, cost reduction, improved workplace safety, and increased flexibility. While challenges exist, such as initial investment and workforce adaptation, the future of automation looks promising with the emergence of collaborative robots, IoT integration, and artificial intelligence. Embracing automation technologies will undoubtedly pave the way for a more efficient and competitive manufacturing sector.Translation:自动化在制造业中的应用：概述简介：自动化在制造业中扮演着重要的角色，革新了生产过程，提高了效率。
自动化专业英语第四版课文翻译
自动化专业英语第四版课文翻译Unit 1现在工业电子系统使用的是被称为晶体管的装置。
每一类型的晶体管有区别于其他晶体管的不同特点和操作条件。
在讨论的第一部分，我们来关注双极性晶体管。
从结构上看，这个晶体管被描述为双极性的，是因为它有两个不同的电流载体极性。
空穴是阳极电流载体，而电子是阴极电流载体。
这两个不同性质的半导体晶体通过一个公共部分连接在一起。
这个装置的结构类似于两个二极管背靠背连接，其中一个晶体充当另外两个晶体的公共部分。
中间的材料通常被做得比外面的两片都要薄。
图1.1表示的是此晶体管的结构，原件名称，和不同双极性晶体管的语义符号。
一个双极性晶体管主要被用做放大器来限制流经它的电流。
电流从电源流入发射极，经过基极，再流出集电极。
集电极的电流量通常被定义为晶体管的输出量。
集电极电流由基极电流中的一小部分控制。
这个关系被描述为电流增量或β。
数学表达式如下：电流增量=集电极电流：基极电流。
公式中希腊字母△表示变化的值。
它用来表示当有交流输入时晶体管的响应。
这种类型的状态被称为动态特性。
公式中的△的省略部分表示直流或静态工作条件。
所有从发射极进入晶体管的电流被定义为发射极电流。
集电极电流Ic通常小于Ie。
Ie和Ic的不同归因于基极电流。
从数学角度看，Ib=Ie-IcUnit 2一个运算放大器的内部结构相当复杂，常常包含大量的分立元件。
一个运算放大器的使用者通常不需要关心它的内部结构。
然而，对于如何理解内部电子电路的完成却是有所帮助的。
这就允许使用者来观察设备是如何工作的，以及表明它作为一个功能单元的一些局限性。
运算放大器的内部电子线路可以被分为三个功能单元。
图1.7即是一个运算放大器内部功能的简图。
注意每一个功能都被附在一个三角形内。
电子图表中用三角形来表示放大功能。
这个简图显示了运算放大器有三个基本的放大功能。
这些功能一般叫作放大级。
一个放大级包含一或更多有源器件，所有相联元件需实现放大。
第一阶段或一个运算放大器的输入常常是一个差动放大器。
自动化专业英语词汇
induction machine 感应式机电horseshoe magnet 马蹄形磁铁magnetic field 磁场eddy current 涡流right-hand rule 右手定则left-hand rule 左手定则slip 转差率induction motor 感应电动机rotating magnetic field 旋转磁场winding 绕组stator 定子rotor 转子induced current 感生电流time-phase 时间相位exciting voltage 励磁电压solt 槽lamination 叠片laminated core 叠片铁芯short-circuiting ring 短路环squirrel cage 鼠笼rotor core 转子铁芯cast-aluminum rotor 铸铝转子bronze 青铜horsepower 马力random-wound 散绕insulation 绝缘ac motor 交流环电动机end ring 端环alloy 合金coil winding 线圈绕组form-wound 模绕performance characteristic 工作特性frequency 频率revolutions per minute 转/分motoring 电动机驱动generating 发电per-unit value 标么值breakdown torque 极限转矩breakaway force 起步阻力overhauling 检修wind-driven generator 风动发机电revolutions per second 转/秒number of poles 极数speed-torque curve 转速力矩特性曲线plugging 反向制动synchronous speed 同步转速percentage 百分数locked-rotor torque 锁定转子转矩full-load torque 满载转矩prime mover 原动机inrush current 涌流magnetizing reacance 磁化电抗line-to-neutral 线与中性点间的staor winding 定子绕组leakage reactance 漏磁电抗no-load 空载full load 满载Polyphase 多相(的)iron-loss 铁损complex impedance 复数阻抗rotor resistance 转子电阻leakage flux 漏磁通locked-rotor 锁定转子chopper circuit 斩波电路separately excited 他励的compounded 复励dc motor 直流电动机de machine 直流机电speed regulation 速度调节shunt 并励series 串励armature circuit 电枢电路optical fiber 光纤interoffice 局间的waveguide 波导波导管bandwidth 带宽light emitting diode 发光二极管silica 硅石二氧化硅regeneration 再生, 后反馈放大coaxial 共轴的, 同轴的high-performance 高性能的carrier 载波mature 成熟的Single Side Band(SSB) 单边带coupling capacitor 结合电容propagate 传导传播modulator 调制器demodulator 解调器line trap 限波器shunt 分路器Amplitude Modulation(AM)调幅Frequency Shift Keying(FSK)移频键控tuner 调谐器attenuate 衰减incident 入射的two-way configuration 二线制generator voltage 发电机电压dc generator 直流发机电polyphase rectifier 多相整流器boost 增压time constant 时间常数forward transfer function 正向传递函数error signal 误差信号regulator 调节器stabilizing transformer 稳定变压器time delay 延时direct axis transient time constant 直轴瞬变时间常数transient response 瞬态响应solid state 固体buck 补偿operational calculus 算符演算gain 增益pole 极点feedback signal 反馈信号dynamic response 动态响应voltage control system 电压控制系统mismatch 失配error detector 误差检测器excitation system 励磁系统field current 励磁电流transistor 晶体管high-gain 高增益boost-buck 升压去磁feedback system 反馈系统reactive power 无功功率feedback loop 反馈回路automatic Voltage regulator(AVR)自动电压调整器reference Voltage 基准电压magnetic amplifier 磁放大器amplidyne 微场扩流发机电self-exciting 自励的limiter 限幅器manual control 手动控制block diagram 方框图linear zone 线性区potential transformer 电压互感器stabilization network 稳定网络stabilizer 稳定器air-gap flux 气隙磁通saturation effect 饱和效应saturation curve 饱和曲线flux linkage 磁链per unit value 标么值shunt field 并励磁场magnetic circuit 磁路load-saturation curve 负载饱和曲线air-gap line 气隙磁化线polyphase rectifier 多相整流器circuit components 电路元件circuit parameters 电路参数electrical device 电气设备electric energy 电能primary cell 原生电池energy converter 电能转换器conductor 导体heating appliance 电热器direct-current 直流time invariant 时不变的self-inductor 自感mutual-inductor 互感the dielectric 电介质storage battery 蓄电池e.m.f = electromotive fore 电动势unidirectional current 单方向性电流circuit diagram 电路图load characteristic 负载特性terminal voltage 端电压external characteristic 外特性conductance 电导volt-ampere characteristics 伏安特性carbon-filament lamp 碳丝灯泡ideal source 理想电源internal resistance 内阻active (passive) circuit elements 有(无)源电路元件leakage current 漏电流circuit branch 支路P.D. = potential drop 电压降potential distribution 电位分布r.m.s values = root mean square values 均方根值effective values 有效值steady direct current 恒稳直流电sinusoidal time function 正弦时间函数complex number 复数Cartesian coordinates 笛卡儿坐标系modulus 模real part 实部imaginary part 虚部displacement current 位移电流trigonometric transformations 瞬时值epoch angle 初相角phase displacement 相位差signal amplifier 小信号放大器mid-frequency band 中频带bipolar junction transistor (BJT)双极性晶体管field effect transistor (FET)场效应管electrode 电极电焊条polarity 极性gain 增益isolation 隔离分离绝缘隔振emitter 发射管放射器发射极collector 集电极base 基极self-bias resistor 自偏置电阻triangular symbol 三角符号phase reversal 反相infinite voltage gain 无穷大电压增益feedback component 反馈元件differentiation 微分integration 积分下限impedance 阻抗fidelity 保真度summing circuit 总和路线反馈系统中的比较环节Oscillation 振荡inverse 倒数admittance 导纳transformer 变压器turns ratio 变比匝比ampere-turns 安匝(数)mutual flux 交互(主)磁通vector equation 向(相)量方程power frequency 工频capacitance effect 电容效应induction machine 感应机电shunt excited 并励series excited 串励separately excited 他励self excited 自励field winding 磁场绕组励磁绕组speed-torque characteristic 速度转矩特性dynamic-state operation 动态运行salient poles 凸极excited by 励磁field coils 励磁线圈air-gap flux distribution 气隙磁通分布direct axis 直轴armature coil 电枢线圈rotating commutator 旋转(整流子)换向器commutator-brush combination 换向器- 电刷总线mechanical rectifier 机械式整流器armature m.m.f. wave 电枢磁势波Geometrical position 几何位置magnetic torque 电磁转矩spatial waveform 空间波形sinusoidal –density wave 正弦磁密度external armature circuit 电枢外电路instantaneous electric power 瞬时电功率instantaneous mechanical power 瞬时机械功率effects of saturation 饱和效应reluctance 磁阻power amplifier 功率放大器compound generator 复励发机电rheostat 变阻器self –excitation process 自励过程commutation condition 换向状况cumulatively compounded motor 积复励电动机operating condition 运行状态equivalent T –circuit T 型等值电路rotor (stator) winding 转子(定子绕组) winding loss 绕组(铜)损耗prime motor 原动机active component 有功分量reactive component 无功分量electromagnetic torque 电磁转矩retarding torque 制动转矩inductive component 感性(无功)分量abscissa axis 横坐标induction generator 感应发机电synchronous generator 同步发机电automatic station 无人值守电站hydropower station 水电站process of self –excitation 自励过程auxiliary motor 辅助电动机technical specifications 技术条件voltage across the terminals 端电压steady –state condition 瞬态暂态reactive in respect to 相对….性active in respect to 相对….呈阻性synchronous condenser 同步进相(调相)机coincide in phase with 与…. 同相synchronous reactance 同步电抗algebraic 代数的algorithmic 算法的1--master element主要元件2--time-delay starting or closing relay延时起动或者闭合继电器3--checking or interlocking relay校验或者联锁继电器4--master contactor主接触器5--stopping device停机元件7--rate-of-change relay变化速率继电器8--control power disconnecting device操作电源切断元件9--reversing device反向元件10--unit sequence switch单元顺序开关11--multifunction device多功能元件12--overspeed device超速元件13--synchronous-speed device同步速度元件14--underspeed device欠速元件15--speed or frequency matching device速度或者频率匹配元件16--not used备用17--shunting or discharge switch分路或者放电开关18--accelerating or decelerating device加速或者减速元件19--starting-to-running transition contactor起动-运转转换接触器20--electrically operated valve电气控制阀21--distance relay距离继电器22--equalizer circuit breaker均衡电流断路器23--temperature control device温度控制元件24--volts per hertz relay电压/频率继电器25--synchronizing or synchronism-check relay同步或者同期检查继电器26--apparatus thermal device设备热元件27--under voltage relay欠电压继电器28--flame detector火焰检测器29--isolating contactor or switch隔离接触器或者开关30--annunciator relay信号继电器31--separate excitation device他励元件32--directional power relay功率方向继电器33--position switch位置开关34--mater sequence device主程序元件35--brush-operating or slip-ringshort-circuiting device电刷或者滑环短路元件36--polarity or polarizing voltage device极性或者极化电压元件37--undercurrent or underpower relay欠电流或者低功率继电器38--bearing protective device轴承保护元件39--mechanical condition monitor机械工况监控器40--field relay励磁继电器41--field circuit breaker励磁断路器42--running circuit breaker运行断路器43--manual transfer or selector device手动转换或者选择元件44--unit sequence starting relay单元顺序起动继电器45--atmospheric condition monitor大气条件监控器46--rever-phase or phase-balance current relay反相或者相平衡电流继电器47--phase-sequence or phase-balance voltage relay相序或者相平衡电压继电器48--incomplete sequence relay操作顺序不全继电器49--machine or transformer thermal relay机电或者变压器的温度继电器50--instantaneous overcurrent relay瞬时过流继电器51--ac time overcurrent relay交流时限过流继电器52--ac circuit breaker交流断路器53--exciter or dc generator relay励磁机或者直流发机电继电器54--turning gear engaging device盘车装置啮合元件55--power factor relay功率因数继电器56--field application relay励磁继电器57--short-circuiting or grounding device短路或者接地元件58--rectification failure relay整流故障继电器59--overvoltage relay过电压继电器60--voltage or current balance relay电压或者电流平衡继电器61--density swith or sensor密度开关或者探头62--time-delay stopping or openning relay延时停机或者开机继电器63--pressure switch压力开关64--ground detector relay接地检测继电器65--governor调速器66--notching or jogging device多级式启动元件67--ac directional over current relay交流方向过流继电器68--blocking or "out-of-step" relay闭锁或者失步继电器69--permissive control device许可控制元件70--rheostst变阻器71--level switch液位开关72--dc circuit breaker直流断路器73--load-resistor contactor负荷电阻接触器74--alarm relay报警继电器75--position changing mechanism位置变换机构76--dc overcurrent relay直流过流继电器77--telemetering device遥测元件78--phase-angle measuring relay相角测量继电器79--reclosing relay重合闸继电器80--flow switch流量开关81--frequency relay频率继电器82--dc load-measuring reclosing relay直流重合闸继电器83--automatic selective control or transfer realy自动选择控制或者转换继电器84--operating mechanism操作机构85--carrier or pilot-wire realy载波或者导引线继电器86--lockout relay闭锁继电器87--differential protective relay差动保护继电器88--auxiliary motor or motor generator辅助电动机或者电动发机电组。
自动化专业英语
自动化专业英语自动化专业英语是指在自动化领域中使用英语进行交流和表达的专业英语。
自动化是一门综合性学科，涉及到机械、电子、计算机、控制等多个领域，因此在专业英语中需要掌握相关的词汇、表达方式和专业知识。
一、自动化专业英语词汇1. Automation（自动化）：The technique of making an apparatus, a process, or a system operate automatically.2. Control system（控制系统）：A system that manages, commands, directs, or regulates the behavior of other devices or systems.3. Programmable logic controller (PLC)（可编程逻辑控制器）：A digital computer used for automation of electromechanical processes.4. Sensor（传感器）：A device that detects and responds to some type of input from the physical environment.5. Actuator（执行器）：A component of a machine that is responsible for moving or controlling a mechanism.6. Feedback（反馈）：The process of returning part of the output of a system to its input.7. Process control（过程控制）：A system that uses sensors and feedback to automatically adjust the operation of a process.8. Industrial robot（工业机器人）：A robot system used for manufacturing, assembly, or material handling tasks.9. Human-machine interface (HMI)（人机界面）：The point of interaction between a human operator and a machine.10. SCADA (Supervisory Control and Data Acquisition)（监控与数据采集系统）：A system for remote monitoring and control of industrial processes.二、自动化专业英语表达方式1. Describing a process（描述过程）：To begin with, the raw materials are fed into the production line. Then, the sensors detect the input and send signals to the control system. The control system processes the signals and adjusts the parameters of the actuators accordingly. This ensures that the production process is carried out smoothly and efficiently.2. Explaining a control system（解释控制系统）：A control system consists of several components, including sensors, actuators, and a programmable logic controller (PLC). The sensors detect the input from the environment and send signals to the PLC. The PLC processes the signals and sends commands to the actuators. The actuators then move or control the mechanism based on the commands received. This allows the control system to regulate and maintain the desired behavior of the system.3. Discussing the importance of automation（讨论自动化的重要性）：Automation plays a crucial role in various industries. It improves efficiency, reduces human error, and increases productivity. By automating repetitive tasks, companies can save time and resources. Moreover, automation enables real-time monitoring and controlof processes, leading to better quality control and higher safety levels. In addition, automation allows for flexibility and scalability, as systems can be easily reprogrammedor reconfigured to adapt to changing requirements.4. Presenting the benefits of using industrial robots（介绍使用工业机器人的好处）：Industrial robots have revolutionized manufacturing processes. They can perform repetitive tasks with high precision and speed, resulting in increased productivity.Furthermore, robots can operate in hazardous environments, reducing the risk to human workers. With their ability to handle heavy loads and work for extended periods, robots contribute to cost savings and improved efficiency. Additionally, robots can be programmed to perform complex tasks, such as assembly or welding, with minimal errors.三、自动化专业英语专业知识1. PID control（PID控制）：A control technique used in feedback control systems. It calculates an error value as the difference between the desired setpoint and the measured process variable. The control algorithm adjusts the output based on proportional, integral, and derivative terms to minimize the error and achieve stable control.2. Robotics（机器人技术）：The branch of engineering and science that deals with the design, construction, operation, and application of robots. It encompasses mechanical engineering, electrical engineering, computer science, and artificial intelligence.3. PLC programming（PLC编程）：The process of creating a set of instructions for a programmable logic controller. It involves defining input and output signals, designing the control logic, and implementing the desired functionality.4. HMI design（人机界面设计）：The process of creating an interface between a human operator and a machine. It involves designing user-friendly screens, buttons, and menus to facilitate interaction and control.5. SCADA system architecture（SCADA系统架构）：The structure and components of a supervisory control and data acquisition system. It typically consists of a human-machine interface, remote terminal units, communication networks, and a central control station.以上是关于自动化专业英语的标准格式文本，涵盖了词汇、表达方式和专业知识。
电气自动化专业英语翻译4-5
电气自动化专业英语（翻译4、5）数字电子4.1数字的概念4.1.1什么是数字信号(1) 一个历史例子。
"听，我的孩子们，你们将会听到保罗·瑞维尔午夜策马飞奔的传奇，"根据朗费罗的诗，保罗·瑞维尔通过波士顿老北教堂的钟楼那里给新英格兰农民发信号。
（如果英军今晚无论是从陆地还是从海上来犯，在老北教堂钟楼的拱门上高挂一盏灯笼作为信号）"一盏灯笼表示从陆地来，两盏灯笼表示从海上来" 。
那就是说，如果英国军队从波士顿陆地向康科德前进，展示一盏灯，如果他们穿过Mystie 河走间接航线，两盏灯将被展示。
爱国者们收到的消息就是数字形式的编码。
我们今天将说这两个" 位" 的信息通过代码运传送(严格地说，二位能表明4 个可能消息，并且要求可分辨的灯，一个红灯和一个白色的灯) . 第一个灯光通知英国军队正前进，第2 盏灯指示他们通过什么路线来。
因为想象只有两条路，信息的第二位能被解释为表明两条路线之一。
如果信息能被一系列的YES/NO所定义，信息就能以数字形式确定。
每个变量只可能有两种状态在传送信息方面使用。
这种方法把信息简化为一系列是/ 不看起来有局限性，但是这种方法实际上十分有用。
数目可以以基数2表示，字母表可以表示成数字代码。
的确，有限输出的任何情形都可以被简化成数字代码。
具体的，n位数字能描述成2n 个可能状态。
如同在我们的历史例子中，数字通讯能用明确定义的代码在两种情况下都通知到大家。
(2) 瑞维尔通讯码分析。
为了更进一步确定数字的信息的概念，我们将定义两个来描述保罗瑞维尔通信系统的数字变量，让B 描述是否英国人正来，并且L 描述他们正来的路线。
数学变量，B和L，是不平常的数学变量，因为每一个只能有两个值。
我们可以用我们希望的任何名字给两值命名：是/ 不，真/假，一/ 0，高/ 低，甚至黑色/白色。
当这类数学被通过符号逻辑用于哲学论据分析时，变量的值被叫对还是错，根据逻辑命题被阐述的正确性。
自动化专业常用英语词汇
自动化专业常用英语词汇自动化专业是现代工程技术领域的重要学科之一，涉及到许多与自动化技术相关的概念和术语。
掌握自动化专业常用的英语词汇对于学习和工作都至关重要。
以下是一些常见的自动化专业英语词汇及其解释，供您参考。
1. Automation - 自动化Automation refers to the use of technology, machinery, and systems to perform tasks or processes with minimal human intervention.2. Control system - 控制系统A control system is a set of devices or software that manages, directs, or regulates the behavior of other devices or systems.3. Sensor - 传感器A sensor is a device that detects and responds to physical or environmental changes, such as temperature, pressure, or motion.4. Actuator - 执行器An actuator is a device that converts electrical, hydraulic, or pneumatic energy into mechanical motion to control or move a system or mechanism.5. Programmable Logic Controller (PLC) - 可编程逻辑控制器A PLC is a digital computer used to control electromechanical processes in industries. It is programmed to automate specific tasks or processes.6. Human Machine Interface (HMI) - 人机界面HMI refers to the interface or interaction between humans and machines. It allows users to monitor and control automated systems through graphical user interfaces.7. Supervisory Control and Data Acquisition (SCADA) - 监控与数据采集系统SCADA is a system that collects and analyzes real-time data from remote devices or processes. It is commonly used in industries to monitor and control large-scale systems.8. Industrial Internet of Things (IIoT) - 工业物联网IIoT refers to the network of interconnected devices, sensors, and systems used in industrial settings to collect and exchange data. It enables automation and data-driven decision-making.9. Robotics - 机器人技术Robotics involves the design, construction, and operation of robots. It combines elements of mechanical engineering, electronics, and computer science to create machines that can perform tasks autonomously or with human guidance.10. Artificial Intelligence (AI) - 人工智能AI refers to the development of computer systems that can perform tasks that normally require human intelligence, such as speech recognition, decision-making, and problem-solving.11. Machine Learning - 机器学习Machine learning is a subset of AI that focuses on the development of algorithms and models that allow computers to learn and improve from data without being explicitly programmed.12. Control loop - 控制回路A control loop is a feedback system used in control systems to continuously monitor and adjust the output based on the desired input or setpoint.13. Feedback - 反馈Feedback is the information or signals received by a control system that allows it to compare the actual output with the desired output and make necessary adjustments.14. Process optimization - 过程优化Process optimization involves improving the efficiency, performance, or quality of a system or process through the use of automation and data analysis.15. Fault diagnosis - 故障诊断Fault diagnosis is the process of identifying and analyzing faults or malfunctions in a system or process. It often involves using sensors, data analysis, and diagnostic algorithms.16. System integration - 系统集成System integration refers to the process of combining different subsystems or components into a unified system that functions as a whole. It involves connecting, configuring, and testing various hardware and software components.17. Industrial control network - 工业控制网络An industrial control network is a communication network used to connect and control devices, sensors, and systems in an industrial environment. It enables data exchange and coordination between different components.18. Safety system - 安全系统A safety system is a set of measures, devices, or procedures designed to prevent accidents, protect personnel, and ensure the safe operation of automated systems.19. Process automation - 过程自动化Process automation refers to the use of technology and systems to automate and streamline industrial processes, reducing human intervention and improving efficiency.20. Data acquisition - 数据采集Data acquisition is the process of collecting and recording data from sensors, devices, or systems. It is an essential step in monitoring and controlling automated processes.以上是一些常见的自动化专业英语词汇及其解释。
自动化专业的英语
自动化专业的英语自动化专业是一个涵盖广泛的领域，涉及到机械、电子、计算机、控制等多个学科，是现代工业和科技的重要支撑。
随着全球经济的发展和技术的进步，自动化专业的需求不断增加，成为了许多国家的战略性产业。
因此，掌握自动化专业的英语无疑是非常重要的。
一、自动化专业的英语词汇自动化专业的英语词汇包括了很多专业术语，例如：1. Automation：自动化2. Control system：控制系统3. Sensor：传感器4. Actuator：执行器5. Programmable Logic Controller (PLC)：可编程逻辑控制器6. Human-Machine Interface (HMI)：人机界面7. Supervisory Control and Data Acquisition (SCADA)：监控与数据采集系统8. Distributed Control System (DCS)：分布式控制系统9. Robotics：机器人学10. Artificial Intelligence (AI)：人工智能以上只是自动化专业中的一小部分英语词汇，学习者需要掌握更多的专业术语，以便更好地理解和应用。
二、自动化专业的英语文献自动化专业的英语文献包括了大量的学术论文、技术报告、标准规范等，这些文献是学习和掌握自动化专业英语的重要资源。
例如： 1. 'Design and Implementation of a Control System for a Mobile Robot'：一个移动机器人控制系统的设计与实现2. 'Application of Artificial Intelligence in Industrial Automation'：人工智能在工业自动化中的应用3. 'Development of a Supervisory Control System for a Thermal Power Plant'：热电厂监控系统的开发4. 'Design and Simulation of a Control System for a Quadrotor UAV'：四旋翼无人机控制系统的设计和仿真5. 'Standard for Programmable Logic Controllers (PLCs)'：可编程逻辑控制器标准规范以上文献涵盖了自动化专业中的不同领域和应用，学习者可以通过阅读和研究这些文献，提高自己的英语水平和专业知识。
自动化专业英语词汇表
自动化专业英语词汇表自动化专业是应用一系列科学技术和方法，通过使用自动控制系统和自动装置，使生产过程自动进行的一门学科。
在这个专业中经常会遇到一些与自动化相关的英语词汇，下面是一个自动化专业英语词汇表，供大家参考。
一、控制系统相关词汇1.1 控制系统 - Control System1.2 自动控制 - Automatic Control1.3 反馈控制 - Feedback Control1.4 前馈控制 - Feedforward Control1.5 PID控制 - PID Control1.6 闭环控制 - Closed-loop Control1.7 开环控制 - Open-loop Control1.8 控制器 - Controller1.9 传感器 - Sensor1.10 执行器 - Actuator1.11 控制信号 - Control Signal1.12 输出信号 - Output Signal1.13 输入信号 - Input Signal1.14 控制策略 - Control Strategy1.15 控制精度 - Control Accuracy二、自动化设备相关词汇2.1 自动装置 - Automatic Device 2.2 自动机械 - Automated Machinery 2.3 机器人 - Robot2.4 运动控制 - Motion Control2.5 伺服系统 - Servo System2.6 步进电机 - Stepper Motor2.7 传动装置 - Transmission Device 2.8 传动比 - Gear Ratio2.9 电气驱动 - Electrical Drive2.10 液压驱动 - Hydraulic Drive2.11 气动驱动 - Pneumatic Drive 2.12 PLC程序 - PLC Program2.13 HMI界面 - HMI Interface2.14 人机交互 - Human-Machine Interaction2.15 自动化线 - Automation Line三、控制算法相关词汇3.1 模糊控制 - Fuzzy Control3.2 神经网络控制 - Neural Network Control 3.3 遗传算法 - Genetic Algorithm3.4 自适应控制 - Adaptive Control3.5 模型预测控制 - Model Predictive Control 3.6 最优控制 - Optimal Control3.7 鲁棒控制 - Robust Control3.8 软件开发 - Software Development3.9 编程语言 - Programming Language3.10 程序调试 - Program Debugging3.11 系统优化 - System Optimization3.12 数据采集 - Data Acquisition3.13 实时控制 - Real-time Control3.14 开发工具 - Development Tool3.15 算法设计 - Algorithm Design四、自动化监控相关词汇4.1 监控系统 - Monitoring System 4.2 故障诊断 - Fault Diagnosis4.3 警报系统 - Alarm System4.4 远程监控 - Remote Monitoring 4.5 数据分析 - Data Analysis4.6 数据可视化 - Data Visualization 4.7 运行状态 - Operating Status4.8 故障报警 - Fault Alarm4.9 监控设备 - Monitoring Equipment 4.10 实时监测 - Real-time Monitoring 4.11 数据记录 - Data Logging4.12 故障排除 - Trouble Shooting 4.13 监测指标 - Monitoring Index 4.14 运行参数 - Operating Parameters 4.15 监测报告 - Monitoring Report总结：以上是自动化专业英语词汇表，涵盖了控制系统、自动化设备、算法和监控等多个方面的词汇。
电气工程及其自动化专业英语
time-invariant 时不变的
self-(or mutual-)induction 自（互）感
displacement current 位移电流 conductance 电导
voltage drop 电压降 volt-ampere characteristics 伏安特性
metal-filament lamp 金属丝灯泡
seen, increase of current from zero to
I≈I1 causes the terminal voltage of the source to decrease linearly
V12=V=E－VS=E－RSI
Fig.1.3
In other words, the voltage drop VS across the source resistance rises in proportion to the current. This goes on until
自动化专业英语词汇
induction machine 感应式机电horseshoe magnet 马蹄形磁铁magnetic field 磁场eddy current 涡流right-hand rule 右手定则left-hand rule 左手定则slip 转差率induction motor 感应电动机rotating magnetic field 旋转磁场winding 绕组stator 定子rotor 转子induced current 感生电流time-phase 时间相位exciting voltage 励磁电压solt 槽lamination 叠片laminated core 叠片铁芯short-circuiting ring 短路环squirrel cage 鼠笼rotor core 转子铁芯cast-aluminum rotor 铸铝转子bronze 青铜horsepower 马力random-wound 散绕insulation 绝缘ac motor 交流环电动机end ring 端环alloy 合金coil winding 线圈绕组form-wound 模绕performance characteristic 工作特性frequency 频率revolutions per minute 转/分motoring 电动机驱动generating 发电per-unit value 标么值breakdown torque 极限转矩breakaway force 起步阻力overhauling 检修wind-driven generator 风动发机电revolutions per second 转/秒number of poles 极数speed-torque curve 转速力矩特性曲线plugging 反向制动synchronous speed 同步转速percentage 百分数locked-rotor torque 锁定转子转矩full-load torque 满载转矩prime mover 原动机inrush current 涌流magnetizing reacance 磁化电抗line-to-neutral 线与中性点间的staor winding 定子绕组leakage reactance 漏磁电抗no-load 空载full load 满载Polyphase 多相(的)iron-loss 铁损complex impedance 复数阻抗rotor resistance 转子电阻leakage flux 漏磁通locked-rotor 锁定转子chopper circuit 斩波电路separately excited 他励的compounded 复励dc motor 直流电动机de machine 直流机电speed regulation 速度调节shunt 并励series 串励armature circuit 电枢电路optical fiber 光纤interoffice 局间的waveguide 波导波导管bandwidth 带宽light emitting diode 发光二极管silica 硅石二氧化硅regeneration 再生, 后反馈放大coaxial 共轴的,同轴的high-performance 高性能的carrier 载波mature 成熟的Single Side Band(SSB) 单边带coupling capacitor 结合电容propagate 传导传播modulator 调制器demodulator 解调器line trap 限波器shunt 分路器Amplitude Modulation(AM)调幅Frequency Shift Keying(FSK)移频键控tuner 调谐器attenuate 衰减incident 入射的two-way configuration 二线制generator voltage 发电机电压dc generator 直流发机电polyphase rectifier 多相整流器boost 增压time constant 时间常数forward transfer function 正向传递函数error signal 误差信号regulator 调节器stabilizing transformer 稳定变压器time delay 延时direct axis transient time constant 直轴瞬变时间常数transient response 瞬态响应solid state 固体buck 补偿operational calculus 算符演算gain 增益pole 极点feedback signal 反馈信号dynamic response 动态响应voltage control system 电压控制系统mismatch 失配error detector 误差检测器excitation system 励磁系统field current 励磁电流transistor 晶体管high-gain 高增益boost-buck 升压去磁feedback system 反馈系统reactive power 无功功率feedback loop 反馈回路automatic Voltage regulator(AVR)自动电压调整器reference Voltage 基准电压magnetic amplifier 磁放大器amplidyne 微场扩流发机电self-exciting 自励的limiter 限幅器manual control 手动控制block diagram 方框图linear zone 线性区potential transformer 电压互感器stabilization network 稳定网络stabilizer 稳定器air-gap flux 气隙磁通saturation effect 饱和效应saturation curve 饱和曲线flux linkage 磁链per unit value 标么值shunt field 并励磁场magnetic circuit 磁路load-saturation curve 负载饱和曲线air-gap line 气隙磁化线polyphase rectifier 多相整流器circuit components 电路元件circuit parameters 电路参数electrical device 电气设备electric energy 电能primary cell 原生电池energy converter 电能转换器conductor 导体heating appliance 电热器direct-current 直流time invariant 时不变的self-inductor 自感mutual-inductor 互感the dielectric 电介质storage battery 蓄电池e.m.f = electromotive fore 电动势unidirectional current 单方向性电流circuit diagram 电路图load characteristic 负载特性terminal voltage 端电压external characteristic 外特性conductance 电导volt-ampere characteristics 伏安特性carbon-filament lamp 碳丝灯泡ideal source 理想电源internal resistance 内阻active (passive) circuit elements 有（无）源电路元件leakage current 漏电流circuit branch 支路P.D. = potential drop 电压降potential distribution 电位分布r.m.s values = root mean square values 均方根值effective values 有效值steady direct current 恒稳直流电sinusoidal time function 正弦时间函数complex number 复数Cartesian coordinates 笛卡儿坐标系modulus 模real part 实部imaginary part 虚部displacement current 位移电流trigonometric transformations 瞬时值epoch angle 初相角phase displacement 相位差signal amplifier 小信号放大器mid-frequency band 中频带bipolar junction transistor (BJT)双极性晶体管field effect transistor (FET)场效应管electrode 电极电焊条polarity 极性gain 增益isolation 隔离分离绝缘隔振emitter 发射管放射器发射极collector 集电极base 基极self-bias resistor 自偏置电阻triangular symbol 三角符号phase reversal 反相infinite voltage gain 无穷大电压增益feedback component 反馈元件differentiation 微分integration 积分下限impedance 阻抗fidelity 保真度summing circuit 总和路线反馈系统中的比较环节Oscillation 振荡inverse 倒数admittance 导纳transformer 变压器turns ratio 变比匝比ampere-turns 安匝(数)mutual flux 交互(主)磁通vector equation 向(相)量方程power frequency 工频capacitance effect 电容效应induction machine 感应机电shunt excited 并励series excited 串励separately excited 他励self excited 自励field winding 磁场绕组励磁绕组speed-torque characteristic 速度转矩特性dynamic-state operation 动态运行salient poles 凸极excited by 励磁field coils 励磁线圈air-gap flux distribution 气隙磁通分布direct axis 直轴armature coil 电枢线圈rotating commutator 旋转（整流子）换向器commutator-brush combination 换向器-电刷总线mechanical rectifier 机械式整流器armature m.m.f. wave 电枢磁势波Geometrical position 几何位置magnetic torque 电磁转矩spatial waveform 空间波形sinusoidal –density wave 正弦磁密度external armature circuit 电枢外电路instantaneous electric power 瞬时电功率instantaneous mechanical power 瞬时机械功率effects of saturation 饱和效应reluctance 磁阻power amplifier 功率放大器compound generator 复励发机电rheostat 变阻器self –excitation process 自励过程commutation condition 换向状况cumulatively compounded motor 积复励电动机operating condition 运行状态equivalent T –circuit T型等值电路rotor (stator) winding 转子（定子绕组）winding loss 绕组（铜）损耗prime motor 原动机active component 有功分量reactive component 无功分量electromagnetic torque 电磁转矩retarding torque 制动转矩inductive component 感性（无功）分量abscissa axis 横坐标induction generator 感应发机电synchronous generator 同步发机电automatic station 无人值守电站hydropower station 水电站process of self –excitation 自励过程auxiliary motor 辅助电动机technical specifications 技术条件voltage across the terminals 端电压steady –state condition 瞬态暂态reactive in respect to 相对….性active in respect to 相对….呈阻性synchronous condenser 同步进相（调相）机coincide in phase with 与….同相synchronous reactance 同步电抗algebraic 代数的algorithmic 算法的1--master element主要元件，是指控制开关等元件。
自动化专业英语(翻译)P3U4教学课件
P3U4B
Understanding DSP and Its Uses
第三部分第四单元课文B 第三部分第四单元课文
了 解数字信号处理器和它的用途
mundane adj. 平凡的 entry n. 入口 audio adj. 音频的 harness v. 利用 graphic equalizer 图像均衡器 consecutive adj. 连续的 instruction set 指令集 monolithic adj. 单片的 address generators 地址发生器 duplex adj. 全双工的 temperature drift 温度漂移 channel n. 信道
P3U4A
Fundamentals of Single-chip Microcomputer
第三部分第四单元课文A 第三部分第四单元课文
单片机基础
如果需要连续精确的定时中断,否则,这是必要的(例如,在 一个时钟内).有时与定时器相关的是事件计数器.这一设备 通常有一特殊输入针,它可直接驱动计数器. 定时元件:大多数微计算机的时钟电路只需要简单的定时 定时元件 元件.若要达到最大性能,必须用一个晶体来保证达到最大时 钟频率,而不是超过.许多时钟电路也把电阻和电容用作低成 本定时元件或由外部源来驱动.如果微计算机的外部需要同步 的话,这后一种方案是很有用的.
CPU
输入& 输 出单元
图3-5A-1 哈佛类
CPU
输入 & 输 出单元
图3-5A-2 传统的普林斯顿计算机
P3U4A
Fundamentals of Single-chip Microcomputer
第三部分第四单元课文A 第三部分第四单元课文
单片机基础
自动化专业英语词汇大全
自动化专业英语词汇大全自动化专业是一个涵盖广泛领域的学科，它与机械、电子、计算机科学等学科有着密切的联系。
掌握自动化专业的英语词汇对于学习和实践该学科都至关重要。
本文将为您提供一个全面的自动化专业英语词汇大全，以帮助您更好地理解和运用这些术语。
1. Automation 自动化2. Robotics 机器人技术3. Artificial Intelligence 人工智能4. Control System 控制系统5. Sensor 传感器6. Actuator执行器7. Programmable Logic Controller 可编程逻辑控制器8. Human-Machine Interface 人机界面9. Supervisory Control and Data Acquisition 监控与数据采集10. Industrial Internet of Things 工业物联网11. SCADA System 监控与数据采集系统12. Machine Vision 机器视觉13. Process Control 过程控制14. PLC Programming 可编程逻辑控制器编程15. PID Control PID控制16. HMI Design 人机界面设计17. DCS System 分散控制系统18. Mechatronics 机电一体化19. Feedback 反馈20. Closed Loop System 闭环系统21. Open Loop System 开环系统22. Industrial Automation 工业自动化23. Robotics Engineering 机器人工程24. Machine Learning 机器学习25. Control Engineering 控制工程26. Industrial Control System 工业控制系统27. Process Automation 过程自动化28. Motion Control 运动控制29. Programmable Automation Controller 可编程自动化控制器30. Adaptive Control 自适应控制除了以上列举的词汇，还有许多与自动化专业相关的术语，如：motion planning, fuzzy logic, system integration, real-time control, networked control等等。
自动化专业英语原文和翻译
自动化专业英语原文和翻译Automation in the Field of EngineeringIntroduction:Automation plays a crucial role in various industries, including engineering. As a result, proficiency in both English and technical knowledge is essential for professionals in the field of automation. This article will provide an original text and its translation in English, focusing on the importance of automation in engineering.Original Text:自动化是一种通过使用计算机技术和控制系统来实现自动操作和控制的技术。
在工程领域，自动化被广泛应用于诸如创造、能源、交通、通信等各个方面。
自动化技术的发展使得工程师能够更高效地完成任务，提高生产效率，并减少了人为错误的发生。
自动化系统可以用于监控和控制各种设备和过程，从而实现自动化生产线、智能交通系统和智能家居等应用。
自动化在工程领域的应用非常广泛。
例如，在创造业中，自动化系统可以用于自动装配和生产线控制，从而提高产品质量和生产效率。
在能源领域，自动化系统可以用于监控和控制发电厂的运行，实现能源的高效利用。
在交通领域，自动化技术可以应用于智能交通信号灯控制和车辆导航系统，提高交通效率和安全性。
在通信领域，自动化系统可以用于网络管理和故障诊断，确保通信网络的稳定运行。
自动化专业英语翻译：Automation is a technology that enables automatic operations and control through the use of computer technology and control systems. In the field of engineering, automation finds extensive applications in various sectors such as manufacturing, energy, transportation, and communication. The development of automation technology allows engineers to efficiently complete tasks, enhance productivity, and reduce human errors. Automation systems can be used for monitoring and controlling various devices andprocesses, enabling applications such as automated production lines, intelligent transportation systems, and smart homes.Automation finds wide-ranging applications in the field of engineering. For instance, in the manufacturing industry, automation systems can be employed for automated assembly and production line control, thereby improving product quality and productivity. In the energy sector, automation systems can be utilized for monitoring and controlling the operation of power plants, facilitating efficient utilization of energy resources. In the transportation domain, automation technology can be applied to intelligent traffic signal control and vehicle navigation systems, enhancing traffic efficiency and safety. In the communication field, automation systems can be used for network management and fault diagnosis, ensuring stable operation of communication networks.Conclusion:The integration of automation in the field of engineering has revolutionized various industries, enabling efficient and reliable operations. Proficiency in both technical knowledge and English language skills is essential for professionals in the automation field to effectively communicate and implement automation solutions. By harnessing the potential of automation, engineers can optimize processes, improve productivity, and contribute to the advancement of the engineering industry.。
自动化专业英语翻译P4U2
P4U2A
Sensors and Transmitters
第四部分第二单元课文A 第四部分第二单元课文
传感器和变送器
5. 参考译文
A 传感器和变送器
在第一单元中，我们了解了控制系统的四个基本元件是传感 器、变送器、控制器和终端控制元件。我们也知道了这些元件执 行每一个控制系统的三个基本操作：测量（M）、设定（D）和 执行（A）。本部分随着控制器较详细的研究，简单介绍一下传 感器和变送器。 传感器和变送器执行的是控制系统的测量（M）操作。传感 器产生一个机械的或与测量的过程变量相关的类似的现象。反过 来，变送器把这一现象转换为可以传递的信号。因此，信号与过 程变量相关。 存在与传感器/变送器组合元件相关的三个重要术语。通过 测量的过程变量的高低数值来设定仪表的范围。也就是说，可以 考虑使用标有刻度的压力传感器/变送器来测量20表压到50表压
P4U2A
Sensors and Transmitters
KT =
第四部分第二单元课文A 第四部分第二单元课文
传感器和变送器
20 mA − 4 mA 16 mA mA = = 0 . 08 200 psig − 0 psig 200 psig psig
考虑的另一个例子是范围在100~300°F的气动温度传感器/ 热敏电阻。增益为
P4U2B Final Control Elements and Controllers 第四部分第二单元课文 终端控制元件和控制器 第四部分第二单元课文B
5. 参考译文
B 终端控制元件和控制器
控制阀 控制阀是最普遍的终端控制元件。在过程工厂中，控制阀被 用于操纵流量，从而使控制量维持在设定值。在本节中，应用于 过程控制的控制阀的许多重要方面被介绍。 在管道过程系统中，控制阀作为可变阻尼，通过改变口的大 小来改变流量阻尼和流量本身的大小。控制阀的作用就是调节流 量。本部分介绍控制阀的作用（故障条件）、控制阀尺寸和它们 的特点。 选择控制阀时工程师必须回答的问题是：当能量传递到控制 阀时，怎样做能使其失效。此问题涉及到阀门的失效点。回答此 问题主要考虑或应该考虑的是可靠性。如果认为出于安全考虑， 阀门应该关闭，那么必须指定“无信号则关”（FC）的阀门， 另一种可能是“无信号则开”（FO）的阀门，当能量提供失败 时，
自动化专业英语
自动化专业英语Introduction:Automation is a rapidly growing field in today's technology-driven world. As a result, proficiency in English is essential for professionals in the field of automation. This document aims to provide a comprehensive guide to mastering English for automation professionals. It covers various aspects, including technical vocabulary, writing skills, and effective communication strategies.Technical Vocabulary:1. Control Systems: Familiarize yourself with terms such as PID controllers, PLCs (Programmable Logic Controllers), SCADA (Supervisory Control and Data Acquisition), and DCS (Distributed Control Systems). Understand their functions and applications in automation.2. Robotics: Learn key terms related to robotics, such as manipulators, end effectors, actuators, sensors, and kinematics. Understand the principles of robotic control and programming languages used in robotics.3. Industrial Networks: Gain knowledge about industrial communication protocols like Modbus, Profibus, and Ethernet/IP. Understand the concepts of network topologies, data transmission, and troubleshooting techniques.4. Process Automation: Acquire vocabulary related to process control, including terms like setpoint, feedback loop, process variable, and tuning. Understand the fundamentals of process control algorithms and techniques.Writing Skills:1. Technical Reports: Learn how to write clear and concise technical reports. Understand the structure, including the introduction, methodology, results, and conclusion sections. Practice using appropriate technical vocabulary and organizing information logically.2. Documentation: Develop skills in creating user manuals, installation guides, and maintenance documentation for automation systems. Focus on providing accurate and detailed instructions, using diagrams and illustrations where necessary.3. Email Communication: Master the art of writing professional emails. Use a formal tone, concise language, and proper grammar. Clearly state the purpose of the email and provide all necessary information. Practice effective email etiquette, including proper greetings and closing remarks.Effective Communication Strategies:1. Presentations: Develop skills in delivering effective presentations. Organize your content logically and use visual aids to enhance understanding. Practice using appropriate body language, voice modulation, and engaging the audience.2. Active Listening: Enhance your listening skills to understand client requirements, project specifications, and feedback. Pay attention to details, ask clarifying questions, and confirm understanding to avoid misunderstandings.3. Teamwork and Collaboration: Learn to effectively communicate and collaborate with colleagues and team members. Practice active participation, sharing ideas, and resolving conflicts constructively. Develop skills in giving and receiving constructive feedback.Conclusion:Mastering English in the field of automation is crucial for professionals to excel in their careers. This comprehensive guide has provided an overview of technical vocabulary, writing skills, and effective communication strategies. By continuously practicing and improving these skills, automation professionals can enhance their professional growth and contribute to the advancement of the industry.。
自动化专业英语(part4_U1-U4)
P4UIA A Process Control System
第四部分第一单元课文A 第四部分第一单元课文
过程控制系统
流体
过程流 T i(t), °C q(t), m 3/s T
加热后的过程 流 T (t), °C
图 4-1A-1 热交换器
P4UIA A Process Control System
P4U2A
Sensors and Transmitters
第四部分第二单元课文A 第四部分第二单元课文
传感器和变送器
4. 难句翻译
[1] The value does not have to be zero in order to be called the zero of the instrument. 仪表的零点并不一定就是零。 [2] gpm = gallons per minute 每分钟加仑数。 [3] This expression shows that the gain is not constant but rather a function of flow. 此表达式说明增益不是常量，而是一个时间的函数。 not…but rather… 不是……而是……
ensuing adj. 相继的 variable adj. 变化的，可变的；n. 变量
P4UIA A Process Control System
第四部分第一单元课文A 第四部分第一单元课文
过程控制系统
latent heat 潜伏热 deviation n. 偏差 throttle v. 调节（阀门） thermocouple n. 热电偶 transmitter n. 热敏电阻 conveyor n. 传送带，传送机
P4U2A
电气工程及其自动化专业英语 4章4节
Chapter 4 Electric Machinery电机Section 4 Transformer变压器Types and construction of transformer变压器的种类和结构A transformer is a device that changes AC electric energy at one voltage level into AC electric energy at another voltage level through the action of a magnetic field.变压器是一种设备，这种设备通过磁场的作用将一种电压等级的交流电转换成另一种电压等级的交流电。
It consists of two or more coils of wire wrapped around a common ferromagnetic core.变压器油了两个或多个缠绕公用铁芯上的线圈组成。
These coils are (usually) not directly connected.这些线圈通常不是直接连接在一起的。
The only connection between the coils is the common magnetic flux present within the core.线圈之间唯一的连接时存在于铁芯中的公共的磁通。
One of the transformer windings is connected to a source of AC electric power,其中一个变压器的线圈与交流电源连接，and the second (and perhaps third) transformer winding supplies electric power to loads.第二个变压器的线圈（可能是第三个线圈）向负载提供电功率。
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CH1 常用低压电器 专业英语 Language Points
[1] Power semiconductor devices constitute the heart of modern power electronic apparatus. They are used in power electronic conversion in the form of a matrix of on-off switches. And the switching mode power conversion gives high efficiency.
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CH1 常用低压电器 专业英语 Language Points
[11]GTOs are available with asymmetric and symmetric voltage-blocking capabilities which are used in voltage-fed and currentfed converters, respectively． [12]GTOs are used in motor drives, static VAR compensators (SVCs), and AC/DC power supplies with high power ratings. When large-power GTOs became available they ousted the force-commutated, voltage-fed thyristor inverters.
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CH1 常用低压电器 专业英语 Language Points
[4] If the reverse voltage exceeds a threshold value, called the breakdown voltage, the device goes through avalanche breakdown, which is when reverse current becomes large and the diode is destroyed by heating due to large power dissipation in the junction.
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CH1 常用低压电器 专业英语 Language Points
[7] Basically, thyristor is a three-junction P-N-P-N device, where P-N-P and N-P-N component transistors are connected in regenerative feedback mode. The device blocks voltage in both the forward and reverse direction (symmetric blocking).
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CH1 常用低压电器 专业英语 Language Points
[6] Often, it is a family name that includes SCR, TRIAC, GTO,MCT, and IGCT. Thyristors can be classified as standard, or slow phase-control-type and fastswitching, voltage-fed inverter-type. The inverter-type has recently become obsolete.
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CH1 常用低压电器 专业英语 Language Points
[5] Thyristors, or silicon-controlled rectifiers (SCRs) have been the traditional workhorses for bulk power conversion and control in industry. The modern era of solid-state power electronics started due to the introduction of this device in the late 1950s.
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CH1 常用低压电器 专业英语 Language Points
[15] The introduction of insulated gate bipolar transistors in the mid-1980s was an important milestone in the history of power semiconductor devices．They are extremely popular devices in power electronics up to medium power range and are applied extensively in DC/AC drives and power supply systems. They ousted BJTs in the upper range, and are currently ousting GTOs in the lower power range.
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CH1 常用低压电器 专业英语 Language Points
[9] A well-designed RC snubber is essential for a triac circuit. Triacs are used in light dimming, heating control, alliancetype motor drives, and solid-state relays with typically 50/60 Hz supply frequency.
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CH1 常用低压电器 专业英语 Language Points
[16] An IGBT is basically a hybrid MOSgated turn-on/off bipolar transistor that combines the advantages of both a MOSFET and BJT. Its architecture is essentially similar to that of a MOSFET, except an additional P+ layer has been added at the collector over the N+ drain layer of the MOSFET.
Complement
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CH1 常用低压电器 专业英语
New Words and Expressions
converter n. 转换器，换流器，变流器 matrix n. 模型，矩阵 diode n. 二极管，半导体二极管 thyristor n. 晶闸管 triac n. 三端双向晶闸管 GTO 门极可关断晶闸管 BJT 双极结型晶体管 power MOSFET 电力MOS场效应晶体 管 SIT 静态感应晶体管
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CH1 常用低压电器 专业英语
New Words and Expressions
IGBT 绝缘栅双极型晶体管 MCT MOS控制晶闸管 IGCT 集成门极换向晶闸管 rectification n. 整流 feedback n. 反馈 freewheeling n. 单向传动 snubber n. 缓冲器，减震器 intrinsic adj. 固有的，体内的，本征
CH1 常用低压电器 专业英语
PART 1 Electrical and Electronic Engineering Basics
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CH1 常用低压电器 专业英语
Section 4 Power Semiconductor Devices
New Words and Expressions Language points
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CH1 常用低压电器 专业英语
New Words and Expressions
forward biased 正向偏置 conduction n. 导电,传导 reverse biased 反向偏置 leakage current 漏电流 threshold n. 门限，阈限，极限 breakdown n. 击穿，雪崩 recovery n. 恢复 schottky diode 肖基特二极管
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CH1 常用低压电器 专业英语 Language Points
[3] They are also used in feedback and the freewheeling functions of converters and snubbers. A typical power diode has P-I-N structure, that is, it is a P-N junction with a near intrinsic semiconductor layer (I-layer) in the middle to sustain reverse voltage.