第一篇：自動化專業(yè)英語

自動化090425王曉康17孫挺24楊凌云16張瑞

These days a massive On the deployment of VoIP in Ethernet

networks:

methodology and case study

Khaled Salah, Department of Information and Computer Science, King Fahd University of Petroleum and Minerals, P.O.Box 5066, Dhahran 31261, Saudi ArabiaReceived 25 May 2004;revised 3 June 2005;accepted 3 June 2005.Available online 1 July 2005.1Introduction

deployment of VoIP is taking place over data networks.Most of these networks are Ethernet based and running IP protocol.Many network managers are finding it very attractive and cost effective to merge and unify voice and data networks into one.It is easier to run, manage, and maintain.However, one has to keep in mind that IP networks are best-effort networks that were designed for non-real time applications.On the other hand, VoIP requires timely packet delivery with low latency, jitter, packet loss, and sufficient bandwidth.To achieve this goal, an efficient deployment of VoIP must ensure these real-time traffic requirements can be guaranteed over new or existing IP networks.When deploying a new network service such as VoIP over existing network, many network architects, managers, planners, designers, and engineers are faced with common strategic, and sometimes challenging, questions.What are the QoS requirements for VoIP? How will the new VoIP load impact the QoS for currently running network services and applications? Will my existing network support VoIP and satisfy the standardized QoS requirements? If so, how many VoIP calls can the network support before upgrading prematurely any part of the existing network hardware? These challenging questions have led to the development of some commercial tools for testing the performance of multimedia applications in data networks.A list of the available commercial tools that support

VoIP is listed in [1,2].For the most part, these tools use two common approaches in assessing the deployment of VoIP into the existing network.One approach is based on first performing network measurements and then predicting the network readiness for supporting VoIP.The prediction of the network readiness is based on assessing the health of network elements.The second approach is based on injecting real VoIP traffic into existing network and measuring the resulting delay, jitter, and loss.Other than the cost associated with the commercial tools, none of the commercial tools offer a comprehensive approach for successful VoIP deployment.In particular, none gives any prediction for the total number of calls that can be supported by the network taking into account important design and engineering factors.These factors include VoIP flow and call distribution, future growth capacity, performance thresholds, impact of VoIP on existing network services and applications, and impact background traffic on VoIP.This paper attempts to address those important factors and layout a comprehensive methodology for a successful deployment of any multimedia application such as VoIP and video conferencing.However, the paper focuses on VoIP as the new service of interest to be deployed.The paper also contains many useful engineering and design guidelines, and discusses many practical issues pertaining to the deployment of VoIP.These issues include characteristics of VoIP traffic and QoS requirements, VoIP flow and call distribution, defining future growth capacity, and measurement and impact of background traffic.As a case study, we illustrate how our approach and guidelines can be applied to a typical network of a small enterprise.The rest of the paper is organized as follows.Section 2 presents a typical network topology of a small enterprise to be used as a case study for deploying VoIP.Section 3 outlines practical eight-step methodology to deploy successfully VoIP in data networks.Each step is described in considerable detail.Section 4 describes important design and engineering decisions to be made based on the analytic and simulation studies.Section 5 concludes the study and identifies future work.外文文獻(xiàn)譯文

以太網(wǎng)網(wǎng)絡(luò)電話傳送調(diào)度：方法和案例分析

Khaled Salah , 信息與計算機(jī)科學(xué), Fahd University 皇家石油礦物大學(xué), 信箱5066, Dhahran 31261, 沙特阿拉伯半島 收到日期2004 年5月25 日;校正日期2005 年6月3 日;接受日期2005 年6月3 日。網(wǎng)上可用日期2005 年7月1 日。

1緒論

最近大量的網(wǎng)絡(luò)電話調(diào)度在數(shù)據(jù)網(wǎng)中占有相當(dāng)?shù)谋壤?。其中大部分基于以太網(wǎng)和運行IP協(xié)議。不少網(wǎng)絡(luò)管理員發(fā)現(xiàn)把語音和數(shù)據(jù)網(wǎng)合二為一非常有吸引力和具成本效應(yīng)。這將更易于運行、管理和維護(hù)。然而，人們應(yīng)該認(rèn)識到IP網(wǎng)絡(luò)目的是為了非實時應(yīng)用服務(wù)；另一方面，網(wǎng)絡(luò)電話要求帶有低延遲、低抖動、低丟包率和充足的帶寬。為了達(dá)到這一目標(biāo)，必須保證在現(xiàn)有或新的IP網(wǎng)絡(luò)中完成實時通信要求的高效網(wǎng)絡(luò)電話調(diào)度。當(dāng)在現(xiàn)有的網(wǎng)絡(luò)部署譬如VoIP這樣的新網(wǎng)絡(luò)服務(wù)，許多網(wǎng)絡(luò)架構(gòu)師、經(jīng)理、計劃師、設(shè)計師和工程師面臨著共同的目標(biāo)和挑戰(zhàn)。什么是網(wǎng)絡(luò)電話的服務(wù)質(zhì)量要求？新的網(wǎng)絡(luò)電話負(fù)荷怎樣沖擊了當(dāng)今運行中的網(wǎng)絡(luò)服務(wù)和應(yīng)用的質(zhì)量？我們現(xiàn)有的網(wǎng)絡(luò)將支持網(wǎng)絡(luò)電話和將滿足標(biāo)準(zhǔn)的服務(wù)質(zhì)量要求嗎？如果那樣，在過早升級任何現(xiàn)有的網(wǎng)絡(luò)硬件的零件前，能支持多少個的VoIP電話網(wǎng)絡(luò)？這些富挑戰(zhàn)性的問題導(dǎo)致了用于測試網(wǎng)絡(luò)多媒體數(shù)據(jù)應(yīng)用性能的商業(yè)工具的發(fā)展。支持網(wǎng)絡(luò)電話的商用工具名單如表[1,2]。很大程度上，這些工具使用兩種共同的方法把VoIP 部署入現(xiàn)有的網(wǎng)絡(luò)。一種方法根據(jù)第一次執(zhí)行的網(wǎng)絡(luò)測量和然后預(yù)測支持VoIP的網(wǎng)絡(luò)應(yīng)該就緒情況。預(yù)測的網(wǎng)絡(luò)情況是根據(jù)網(wǎng)絡(luò)要素來估計的。第二種是根據(jù)加入到現(xiàn)有網(wǎng)絡(luò)中VoIP的實時通信信息，然后測出延時時間、時基誤差和丟包率。除相關(guān)的商業(yè)工具費用外，沒有其它工具能夠提供全面兼容的成功網(wǎng)絡(luò)電話調(diào)度方法。特別是，無任何一個預(yù)測能給出網(wǎng)絡(luò)可以支持的呼叫次數(shù)已提到設(shè)計和工程的議事日程上來。這些因素包括網(wǎng)絡(luò)電話流程和呼叫分配、今后增長容量、性能極限、VoIP對現(xiàn)有網(wǎng)絡(luò)服務(wù)和應(yīng)用以及后臺通信能力的沖擊。本文嘗試研究這些重要因素，規(guī)劃出一個支

持像網(wǎng)絡(luò)電話和視頻會議系統(tǒng)的全面可行方法。

無論如何，本文集中論述了網(wǎng)絡(luò)電話服務(wù)調(diào)度新方法。文章同樣包含了許多工程和設(shè)計指南，同時也討論了許多與網(wǎng)絡(luò)電話相關(guān)的實際問題。這些問題包括網(wǎng)絡(luò)電話的通信和服務(wù)質(zhì)量要求，網(wǎng)絡(luò)電話數(shù)據(jù)流向和呼叫分配，定義今后的增長容量以及我們的方法和綱領(lǐng)怎樣應(yīng)用在像小型的企業(yè)網(wǎng)這樣的典型網(wǎng)絡(luò)中。其余部分作如下安排：第二部分論述了小型企業(yè)網(wǎng)的典型網(wǎng)絡(luò)拓?fù)淙绾卧诰W(wǎng)絡(luò)電話中實現(xiàn)調(diào)度。第三部分大致描述了網(wǎng)絡(luò)電話數(shù)據(jù)網(wǎng)調(diào)度實用的八個步驟。每一步驟都有詳細(xì)的說明。第四部分介紹了基于分析和仿真研究得出的重要設(shè)計結(jié)論和工程結(jié)論。第五部分談到了今后研究還需做的具體工作。

第二篇：自動化專業(yè)英語

1)the parameterization of the0controller0isC=X+MQ/Y-NQ。where N,M are right coprime factors of P,X,Y satisfy NX+MY=1,Q∈RH∞

2)According to the right coprime factorization of P, N=,M=,X=,Y=By the performance of the closed-loop system

N(0)[X(0)+M(0)Q(0)]=1 N(10j)[Y(10j)-N(10j)Q(10j)]=0，So take Q in the form Q(s)=x1+x2·1/s+1+x3·1/(x+

1)2

we can get the solution of Q。x1=,x2=,x3=,Q=Finally,the controller is C=

步驟:S=1-λ/λ代人 P(λ)=λ2/6λ2-5λ+1

X=-q2/r2 ,y=1+q1q2/r2 λ=1/s﹢1

N(S)=1/(s+1)2

M(s)=(s-1)(s-2)/(s+1)2 X(s)=19s-11/s+1Y(s)=s+6/s+1

C=X+MQ/Y-NQ

N(0)[X(0)+M(0)Q(0)]=1 N(10j)[Y(10j)-N(10j)Q(10j)]=0

Q(0)=6，Q(10j)=-94+70j Q(s)=x1+x2·1/s+1+x3·1/(x+

1)2

x1=-79 x2=-723 x3=808 Q(s)=(-79s2-881s+6)/(s+1)2C(s)=[-60s4-598s32

2+2515s-1794s+1]/[s(s+100)(s+9)]

A control system is stable if the number of encirclements of the(-1,0)point by the GH plot is equal to the number of poles of GH with positive real parts.The direction of encirclement must be in a direction opposite to τs.GH is on open loop transfer function.τs is open right half of s-plane.一個控制系統(tǒng)是穩(wěn)定的數(shù)量是否包圍的(1,0)點的GH圖的數(shù)量相等的兩極與積極的真實部分GH。被包圍的方向都必須在一個τs的相反方向。

“GH”是在開環(huán)傳遞函數(shù)上。τs在s-plane的右半平面開放。

二．The process of designing a control system generally involves many steps.A typical scenario is as follows:

1.Study the system to be controlled and decide what types of sensors and actuators will be used and where they will be placed.2.Model the resulting system to be controlled.3.Simplify the model if necessary so that it is tractable.4.Analyze the resulting model;determine its properties.5.Decide on performance specifications.6.Decide on the type of controller to be used.7.Design a controller to meet the specs, if possible;if not, modify the specs or generalize the type of controller sought.8.Simulate the resulting controlled system, either on a computer or in a pilot plant.9.Repeat from step 1 if necessary.10.Choose hardware and software and implement the controller.11.Tune the controller on-line if necessary.r．reference or command inputvsensor outputuactuating signal, plant inputdexternal disturbanceyplant output and measured signaln．sensor noise

第三篇：自動化專業(yè)英語中英對照

自動化專業(yè)英語中英文對照 retarding torque 制動轉(zhuǎn)矩

inductive component 感性（無功）分量 abscissa axis 橫坐標(biāo)

induction generator 感應(yīng)發(fā)電機(jī)

synchronous generator 同步發(fā)電機(jī)automatic station 無人值守電站hydropower station 水電站

process of self – excitation 自勵過程auxiliary motor 輔助電動機(jī)

technical specifications 技術(shù)條件voltage across the terminals 端電壓steady – state condition 瞬態(tài) 暫態(tài)reactive in respect to 相對….呈感性active in respect to 相對….呈阻性synchronous condenser 同步進(jìn)相（調(diào)相）機(jī)

coincide in phase with 與….同相synchronous reactance 同步電抗algebraic 代數(shù)的algorithmic 算法的biphase 雙相的bilateral circuit 雙向電路bimotored 雙馬達(dá)的corridor 通路

shunt displacement current 旁路位移電流

leakage 泄漏

lightning shielding 避雷harmonic 諧波的insulator string 絕緣子串neutral 中性的zero sequence current 零序電流sinusoidal 正弦的square平方

corona 電暈,放電bypass 旁路

voltmeter 電壓表ammeter 電流表micrometer 千分尺thermometer 溫度計watt-hour meter 電度表wattmeter 電力表private line 專用線路diameter 直徑centimeter 厘米

restriking 電弧再觸發(fā)magnitude 振幅oscillation 振蕩auxiliary 輔助的protective gap 保護(hù)性間隙放電receptacle 插座

lightning arrester 避雷裝置bushing 套管trigger 起動裝置stress 應(yīng)力

deterioration 損壞,磨損spark gap 火花放電隙traveling-wave 行波

wye-connected 星形連接enclosure 設(shè)備外殼live conductor 帶電導(dǎo)體fuse 熔斷器

structural 結(jié)構(gòu)上的out-of-step 不同步的resynchronize 再同步synchroscops 同步指示器

automatic oscillograph 自動示波器nominally 標(biāo)稱sampling 采樣

potential transformer 電壓互感器fraction 分?jǐn)?shù)

switchyard 戶外配電裝置hazard 危險bushing 高壓套contact 觸點

energize 勵磁trip coil 跳閘線圈

over-current relay 過電流繼電器armature 銜鐵

pickup current 始動電流release current 釋放電流solenoid relay 螺管式繼電器

induction-disc relay 感應(yīng)圓盤式繼電器cast-aluminum rotor 鑄鋁轉(zhuǎn)子bronze 青銅horsepower 馬力random-wound 散繞insulation 絕緣

ac motor 交流環(huán)電動機(jī)end ring 端環(huán)alloy 合金

inverse time relay 反時限繼電器hydraulic 液力的dashpot 阻尼器pneumatic 氣動的permanent magnet 永磁體electrical stressing 電氣應(yīng)力mechanical stressing 機(jī)械應(yīng)力deviation 偏差

third harmonic voltage 三次諧波電壓induction machine 感應(yīng)式電機(jī)horseshoe magnet 馬蹄形磁鐵magnetic field 磁場eddy current 渦流

right-hand rule 右手定則left-hand rule 左手定則slip 轉(zhuǎn)差率

induction motor 感應(yīng)電動機(jī)rotating magnetic field 旋轉(zhuǎn)磁場winding 繞組stator 定子rotor 轉(zhuǎn)子

induced current 感生電流time-phase 時間相位

exciting voltage 勵磁電壓solt 槽

lamination 疊片

laminated core 疊片鐵芯short-circuiting ring 短路環(huán)squirrel cage 鼠籠rotor core 轉(zhuǎn)子鐵芯coil winding 線圈繞組form-wound 模繞

performance characteristic 工作特性frequency 頻率

revolutions per minute 轉(zhuǎn)/分motoring 電動機(jī)驅(qū)動generating 發(fā)電

per-unit value 標(biāo)么值

breakdown torque 極限轉(zhuǎn)矩breakaway force 起步阻力overhauling 檢修

wind-driven generator 風(fēng)動發(fā)電機(jī)revolutions per second 轉(zhuǎn)/秒number of poles 極數(shù)

speed-torque curve 轉(zhuǎn)速力矩特性曲線plugging 反向制動

synchronous speed 同步轉(zhuǎn)速percentage 百分?jǐn)?shù)

locked-rotor torque 鎖定轉(zhuǎn)子轉(zhuǎn)矩full-load torque 滿載轉(zhuǎn)矩prime mover 原動機(jī)

inrush current 涌流magnetizing reacance 磁化電抗

line-to-neutral 線與中性點間的staor winding 定子繞組leakage reactance 漏磁電抗no-load 空載full load 滿載

Polyphase 多相(的)iron-loss 鐵損

complex impedance 復(fù)數(shù)阻抗rotor resistance 轉(zhuǎn)子電阻leakage flux 漏磁通locked-rotor 鎖定轉(zhuǎn)子chopper circuit 斬波電路separately excited 他勵的compounded 復(fù)勵dc motor 直流電動機(jī)de machine 直流電機(jī)speed regulation 速度調(diào)節(jié)shunt 并勵series 串勵

armature circuit 電樞電路optical fiber 光纖interoffice 局間的waveguide 波導(dǎo) 波導(dǎo)管bandwidth 帶寬

light emitting diode 發(fā)光二極管silica 硅石 二氧化硅

regeneration 再生, 后反饋放大coaxial 共軸的,同軸的high-performance 高性能的carrier 載波mature 成熟的Single Side Band(SSB)單邊帶coupling capacitor 結(jié)合電容propagate 傳導(dǎo) 傳播modulator 調(diào)制器demodulator 解調(diào)器line trap 限波器shunt 分路器

Amplitude Modulation(AM 調(diào)幅

Frequency Shift Keying(FSK)移頻鍵控

tuner 調(diào)諧器attenuate 衰減incident 入射的two-way configuration 二線制generator voltage 發(fā)電機(jī)電壓dc generator 直流發(fā)電機(jī)

polyphase rectifier 多相整流器boost 增壓

time constant 時間常數(shù)

forward transfer function 正向傳遞函數(shù)

error signal 誤差信號regulator 調(diào)節(jié)器

stabilizing transformer 穩(wěn)定變壓器time delay 延時

direct axis transient time constant 直軸瞬變時間常數(shù)

transient response 瞬態(tài)響應(yīng)solid state 固體buck 補(bǔ)償

operational calculus 算符演算gain 增益pole 極點

feedback signal 反饋信號dynamic response 動態(tài)響應(yīng)

voltage control system 電壓控制系統(tǒng)mismatch 失配

error detector 誤差檢測器excitation system 勵磁系統(tǒng)field current 勵磁電流transistor 晶體管high-gain 高增益boost-buck 升壓去磁

feedback system 反饋系統(tǒng)reactive power 無功功率feedback loop 反饋回路

automatic Voltage regulator(AVR)自動電壓調(diào)整器

reference Voltage 基準(zhǔn)電壓magnetic amplifier 磁放大器amplidyne 微場擴(kuò)流發(fā)電機(jī)self-exciting 自勵的limiter 限幅器

manual control 手動控制block diagram 方框圖linear zone 線性區(qū)

potential transformer 電壓互感器stabilization network 穩(wěn)定網(wǎng)絡(luò)stabilizer 穩(wěn)定器

air-gap flux 氣隙磁通saturation effect 飽和效應(yīng)saturation curve 飽和曲線flux linkage 磁鏈per unit value 標(biāo)么值shunt field 并勵磁場magnetic circuit 磁路

load-saturation curve 負(fù)載飽和曲線air-gap line 氣隙磁化線

polyphase rectifier 多相整流器circuit components 電路元件

circuit parameters 電路參數(shù)electrical device 電氣設(shè)備electric energy 電能primary cell 原生電池

energy converter 電能轉(zhuǎn)換器conductor 導(dǎo)體

heating appliance 電熱器direct-current 直流

time invariant 時不變的self-inductor 自感mutual-inductor 互感the dielectric 電介質(zhì)storage battery 蓄電池

e.m.f = electromotive fore 電動勢unidirectional current 單方向性電流circuit diagram 電路圖

load characteristic 負(fù)載特性terminal voltage 端電壓

external characteristic 外特性conductance 電導(dǎo)volt-ampere characteristics 伏安特性carbon-filament lamp 碳絲燈泡ideal source 理想電源internal resistance 內(nèi)阻

active(passive)circuit elements 有（無）源電路元件

leakage current 漏電流circuit branch 支路

P.D.= potential drop 電壓降potential distribution 電位分布

r.m.s values = root mean square values 均方根值

effective values 有效值

steady direct current 恒穩(wěn)直流電

sinusoidal time function 正弦時間函數(shù)complex number 復(fù)數(shù)

Cartesian coordinates 笛卡兒坐標(biāo)系modulus 模real part 實部

imaginary part 虛部

displacement current 位移電流

trigonometric transformations 瞬時值epoch angle 初相角

phase displacement 相位差signal amplifier 小信號放大器mid-frequency band 中頻帶

bipolar junction transistor(BJT)雙極性晶體管

field effect transistor(FET)場效應(yīng)管electrode 電極 電焊條polarity 極性gain 增益

isolation 隔離 分離 絕緣 隔振emitter 發(fā)射管 放射器 發(fā)射極collector 集電極base 基極

self-bias resistor 自偏置電阻triangular symbol 三角符號

phase reversal 反相

infinite voltage gain 無窮大電壓增益feedback component 反饋元件differentiation 微分integration 積分下限impedance 阻抗fidelity 保真度

summing circuit 總和線路 反饋系統(tǒng)中的比較環(huán)節(jié)

Oscillation 振蕩inverse 倒數(shù)admittance 導(dǎo)納transformer 變壓器turns ratio 變比 匝比ampere-turns 安匝(數(shù))mutual flux 交互(主)磁通vector equation 向(相)量方程power frequency 工頻

capacitance effect 電容效應(yīng)induction machine 感應(yīng)電機(jī)shunt excited 并勵series excited 串勵separately excited 他勵self excited 自勵

field winding 磁場繞組 勵磁繞組speed-torque characteristic 速度轉(zhuǎn)矩特性

dynamic-state operation 動態(tài)運行salient poles 凸極excited by 勵磁field coils 勵磁線圈

air-gap flux distribution 氣隙磁通分布direct axis 直軸

armature coil 電樞線圈

rotating commutator 旋轉(zhuǎn)（整流子）換向器

commutator-brush combination 換向器-電刷總線

mechanical rectifier 機(jī)械式整流器armature m.m.f.wave 電樞磁勢波Geometrical position 幾何位置magnetic torque 電磁轉(zhuǎn)矩spatial waveform 空間波形

sinusoidal – density wave 正弦磁密度

external armature circuit 電樞外電路instantaneous electric power 瞬時電功率

instantaneous mechanical power 瞬時機(jī)械功率

effects of saturation 飽和效應(yīng)reluctance 磁阻

power amplifier 功率放大器compound generator 復(fù)勵發(fā)電機(jī)rheostat 變阻器

self – excitation process 自勵過程commutation condition 換向狀況

cumulatively compounded motor 積復(fù)勵電動機(jī)

operating condition 運行狀態(tài)

equivalent T – circuit T型等值電路rotor(stator)winding 轉(zhuǎn)子（定子繞組）winding loss 繞組（銅）損耗prime motor 原動機(jī)

active component 有功分量reactive component 無功分量electromagnetic torque 電磁轉(zhuǎn)矩

第四篇：電氣工程及其自動化專業(yè)英語

induction machine 感應(yīng)式電機(jī) horseshoe magnet 馬蹄形磁鐵 magnetic field 磁場 eddy current 渦流 right-hand rule 右手定則 left-hand rule 左手定則 slip 轉(zhuǎn)差率 induction motor 感應(yīng)電動機(jī) rotating magnetic field 旋轉(zhuǎn)磁場 winding 繞組 stator 定子 rotor 轉(zhuǎn)子 induced current 感生電流 time-phase 時間相位 exciting voltage 勵磁電壓 solt 槽 lamination 疊片 laminated core 疊片鐵芯 short-circuiting ring 短路環(huán) squirrel cage 鼠籠 rotor core 轉(zhuǎn)子鐵芯 cast-aluminum rotor 鑄鋁轉(zhuǎn)子 bronze 青銅 horsepower 馬力 random-wound 散繞 insulation 絕緣 ac motor 交流環(huán)電動機(jī) end ring 端環(huán) alloy 合金 coil winding 線圈繞組 form-wound 模繞 performance characteristic 工作特性 frequency 頻率

revolutions per minute 轉(zhuǎn)/分 分 motoring 電動機(jī)驅(qū)動 generating 發(fā)電 per-unit value 標(biāo)么值 breakdown torque 極限轉(zhuǎn)矩 breakaway force 起步阻力 overhauling 檢修 wind-driven generator 風(fēng)動發(fā)電機(jī) revolutions per second 轉(zhuǎn)/秒 秒 number of poles 極數(shù) speed-torque curve 轉(zhuǎn)速力矩特性曲線 plugging 反向制動 synchronous speed 同步轉(zhuǎn)速 percentage 百分?jǐn)?shù) locked-rotor torque 鎖定轉(zhuǎn)子轉(zhuǎn)矩 full-load torque 滿載轉(zhuǎn)矩 prime mover 原動機(jī) inrush current 涌流 magnetizing reacance 磁化電抗 line-to-neutral 線與中性點間的 staor winding 定子繞組 leakage reactance 漏磁電抗 no-load 空載 full load 滿載 多相(的 Polyphase 多相 的)iron-loss 鐵損 complex impedance 復(fù)數(shù)阻抗 rotor resistance 轉(zhuǎn)子電阻 leakage flux 漏磁通 locked-rotor 鎖定轉(zhuǎn)子 chopper circuit 斬波電路 separately excited 他勵的 compounded 復(fù)勵 dc motor 直流電動機(jī) de machine 直流電機(jī) speed regulation 速度調(diào)節(jié) shunt 并勵 series 串勵 armature circuit 電樞電路 optical fiber 光纖 interoffice 局間的 wave guide 波導(dǎo) 波導(dǎo)管 bandwidth 帶寬 light emitting diode 發(fā)光二極管

silica 硅石 二氧化硅 regeneration 再生 后反饋放大 再生, coaxial 共軸的 同軸的 共軸的,同軸的 high-performance 高性能的 carrier 載波 mature 成熟的 Single Side Band(SSB)單邊帶 coupling capacitor 結(jié)合電容 propagate 傳導(dǎo) 傳播 modulator 調(diào)制器 demodulator 解調(diào)器 line trap 限波器 shunt 分路器 Amplitude Modulation(AM 調(diào)幅 Frequency Shift Keying(FSK)移頻鍵控 tuner 調(diào)諧器 attenuate 衰減 incident 入射的 two-way configuration 二線制 generator voltage 發(fā)電機(jī)電壓 dc generator 直流發(fā)電機(jī) polyphase rectifier 多相整流器 boost 增壓 time constant 時間常數(shù) forward transfer function 正向傳遞函數(shù) error signal 誤差信號 regulator 調(diào)節(jié)器 stabilizing transformer 穩(wěn)定變壓器 time delay 延時 direct axis transient time constant 直軸瞬變時間常數(shù) transient response 瞬態(tài)響應(yīng) solid state 固體 buck 補(bǔ)償 operational calculus 算符演算 gain 增益 pole 極點 feedback signal 反饋信號 dynamic response 動態(tài)響應(yīng) voltage control system 電壓控制系統(tǒng) mismatch 失配 error detector 誤差檢測器 excitation system 勵磁系統(tǒng) field current 勵磁電流 transistor 晶體管high-gain 高增益 boost-buck 升壓去磁 feedback system 反饋系統(tǒng) reactive power 無功功率 feedback loop 反饋回路 automatic Voltage regulator(AVR)自動電壓調(diào)整器 自動電壓調(diào)整器 reference Voltage 基準(zhǔn)電壓 magnetic amplifier 磁放大器 amplidyne 微場擴(kuò)流發(fā)電機(jī) self-exciting 自勵的 limiter 限幅器 manual control 手動控制 block diagram 方框圖 linear zone 線性區(qū) potential transformer 電壓互感器 stabilization network 穩(wěn)定網(wǎng)絡(luò) stabilizer 穩(wěn)定器 air-gap flux 氣隙磁通 saturation effect 飽和效應(yīng) saturation curve 飽和曲線 flux linkage 磁鏈 per unit value 標(biāo)么值 shunt field 并勵磁場 magnetic circuit 磁路 load-saturation curve 負(fù)載飽和曲線 air-gap line 氣隙磁化線 polyphase rectifier 多相整流器 circuit components 電路元件 circuit parameters 電路參數(shù) electrical device 電氣設(shè)備 electric energy 電能 primary cell 原生電池 電能轉(zhuǎn)換器 energy converter 電能轉(zhuǎn)換器 conductor 導(dǎo)體 heating appliance 電熱器 direct-current 直流 time invariant 時不變的 self-inductor 自感 mutual-inductor 互感 the dielectric 電介質(zhì) storage battery 蓄電池 e.m.f = electromotive force

電動勢 generator 發(fā)電機(jī) gas insulated substation GIS 氣體絕緣變電站 氣體絕緣變電站 turbogenerator 汽輪發(fā)電機(jī) neutral point 中性點

hydrogenerator 水輪發(fā)電機(jī) moving contact 動觸頭 hydraulic turbine 水輪機(jī) fixed contact 靜觸頭 steam turbine 汽輪機(jī) arc-extinguishing chamber 滅弧室 dynamo 直流發(fā)電機(jī) stray capacitance 雜散電容 motor 電動機(jī) stray inductance 雜散電感 stator 定子 sphere gap 球隙 rotor 轉(zhuǎn)子 bushing tap grounding wire 套管末屏接地線 power transformer 電力變壓器 electrostatic voltmeter 靜電電壓表 variable transformer 調(diào)壓變壓器 ammeter 電流表 taped transformer 多級變壓器 grounding capacitance 對地電容 step up(down)transformer 升(降)壓變壓器 voltage divider 分壓器 降 壓變壓器 circuit breaker CB 斷路器 surge impedance 波阻抗 dead tank oil circuit breaker 多油斷路器 Schering bridge 西林電橋 live tank oil circuit breaker 少油斷路器 Rogowski coil 羅可夫斯基線圈 vacuum circuit breaker 真空斷路器 oscilloscope 示波器 sulphur hexafluoride breaker SF6 斷路器 peak voltmeter 峰值電壓表 峰值電壓表 potential transformer PT 電壓互感器 conductor 導(dǎo)線 current transformer CT 電流互感器 cascade transformer 串級變壓器 disconnector 隔離開關(guān) coupling capacitor 耦合電容 earthing switch 接地開關(guān) test object 被試品 synchronous generator 同步發(fā)電機(jī) detection impedance 檢測阻抗 asynchronous machine 異步電機(jī) substation 變電站 Insulator 絕緣子 hydro power station 水力發(fā)電站 lightning arrester 避雷器 thermal power station 火力發(fā)電站 metal oxide arrester MOA 氧化鋅避雷器 nuclear power station 核電站 bus bar 母線 oil-filled power cable 充油電力電纜 overhead line 架空線 mixed divider(阻容 混合分壓器 阻容)混合分壓器 阻容 transmission line 傳輸線 XLPE cable 交鏈聚乙烯電纜(coaxial)cable(同軸 電纜 relay 繼電器 同軸)電纜 同軸 iron core 鐵芯 tuned circuit 調(diào)諧電路 winding 繞組 suspension insulator 懸式絕緣子 bushing 套管 porcelain insulator 陶瓷絕緣子 波頭(尾 電阻 front(tail)resistance 波頭 尾)電阻 glass insulator 玻璃絕緣子 inverter station 換流站 flash counter 雷電計數(shù)器 steel-reinforced aluminum conductor 充電(阻尼 阻尼)電阻 鋼芯鋁絞線 charging(damping)resistor 充電 阻尼 電阻 tank 箱體 point plane gap 針板間隙 earth(ground)wire 接地線 exciting winding 激磁繞組 grading ring 均壓環(huán) trigger electrode 觸發(fā)電極 highvoltage engineering 高電壓工程 glow discharge 輝光放電 highvoltage testing technology 高電壓試驗技術(shù) harmonic 諧波 Power electronics 電力電子 Automatic control 自動控制 Principles of electric circuits 電路原理 Digital signal processing 數(shù)字信號處理

電氣工程專業(yè)英語詞匯表 2 power system 電力系統(tǒng) impulse current 沖擊電流 power network 電力網(wǎng)絡(luò) impulse flashover 沖擊閃絡(luò) insulation 絕緣 inhomogenous field 不均勻場 overvoltage 過電壓 insulation coordination 絕緣配合 aging 老化 internal discharge 內(nèi)部放電 alternating current 交流電 lightning stroke 雷電波 AC transmission system 交流輸電系統(tǒng) lightning overvoltage 雷電過電壓 介質(zhì))損耗角 arc discharge 電弧放電 loss angle(介質(zhì) 損耗角 介質(zhì) attachment coefficient 附著系數(shù) magnetic field 磁場 attenuation factor 衰減系數(shù) mean free path平均自由行程 anode(cathode)陽極 陰極 mean molecular velocity平均分子速度 陽極(陰極 陰極)breakdown(電)擊穿 negative ions 負(fù)離子 電 擊穿 bubble breakdown 氣泡擊穿 non-destructive testing 非破壞性試驗 cathode ray oscilloscope 陰極射線示波器 non-uniform field 不均勻場 cavity 空穴 腔 partial discharge 局部放電 空穴,腔 corona 電暈 peak reverse voltage 反向峰值電壓 composite insulation 組合絕緣 photoelectric emission 光電發(fā)射 critical breakdown voltage 臨界擊穿電壓 photon 光子 Discharge 放電 phase-to-phase voltage 線電壓 Dielectric 電介質(zhì) 絕緣體 polarity effect 極性效應(yīng) 電介質(zhì),絕緣體 dielectric constant 介質(zhì)常數(shù) power capacitor 電力電容 dielectric loss 介質(zhì)損耗

quasi-uniform field 稍不均勻場 direct current 直流電 radio interference 無線干擾 divider ratio 分壓器分壓比 rating of equipment 設(shè)備額定值 grounding 接地 routing testing 常規(guī)試驗 electric field 電場 residual capacitance 殘余電容 electrochemical deterioration 電化學(xué)腐蝕 shielding 屏蔽 electron avalanche 電子崩 short circuit testing 短路試驗 electronegative gas 電負(fù)性氣體 space charge 空間電荷 epoxy resin 環(huán)氧樹脂 streamer breakdown 流注擊穿 expulsion gap 滅弧間隙 surface breakdown 表面擊穿 field strength 場強(qiáng) sustained discharge 自持放電 field stress 電場力 switching overvoltage 操作過電壓 field distortion 場畸變 thermal breakdown 熱擊穿 field gradient 場梯度 treeing 樹枝放電 field emission 場致發(fā)射 uniform field 均勻場 flashover 閃絡(luò) wave front(tail)波頭 尾)波頭(尾 gaseous insulation 氣體絕緣 withstand voltage 耐受電壓 Prime mover 原動機(jī) Power factor 功率因數(shù) Torque 力矩 Distribution automation system 配電網(wǎng)自動化系統(tǒng) Servomechanism 伺服系統(tǒng) Automatic meter reading 自動抄表 Boiler 鍋爐 Armature 電樞 Internal combustion engine 內(nèi)燃機(jī) Brush 電刷

Deenergize 斷電 Commutator 換向器 Underground cable 地下電纜 Counter emf 反電勢 電氣工程專業(yè)英語詞匯表 3 退磁,去磁 Loop system 環(huán)網(wǎng)系統(tǒng) Demagnetization 退磁 去磁 Distribution system 配電系統(tǒng) Relay panel 繼電器屏 Trip circuit 跳閘電路 Tertiary winding 第三繞組 Switchboard 配電盤 開關(guān)屏 Eddy current 渦流 配電盤,開關(guān)屏 Instrument transducer 測量互感器 Copper loss 銅損 Oil-impregnated paper 油浸紙絕緣 Iron loss 鐵損 Bare conductor 裸導(dǎo)線 Leakage flux 漏磁通 Reclosing 重合閘 Autotransformer 自耦變壓器 Distribution dispatch center 配電調(diào)度中心 Zero sequence current 零序電流 Pulverizer 磨煤機(jī) Series(shunt)compensation 串(并)聯(lián)補(bǔ)償 并 聯(lián)補(bǔ)償 汽包,爐筒 Drum 汽包 爐筒 Restriking 電弧重燃 Superheater 過熱器 Automatic oscillograph 自動錄波儀 Peak-load 峰荷 Tidal current 潮流 Prime grid substation 主網(wǎng)變電站 Trip coil 跳閘線圈 Reactive power` 無功功率 Synchronous condenser 同步調(diào)相機(jī) Active power 有功功率 Main and transfer busbar 單母線帶旁路 Shunt reactor 并聯(lián)電抗器 Feeder 饋電線 Blackout 斷電、停電 Skin effect 集膚效應(yīng) 斷電、Extra-high voltage(EHV)超高壓 Potential stress 電位應(yīng)力 電場強(qiáng)度 電位應(yīng)力(電場強(qiáng)度 電場強(qiáng)度)Ultra-high voltage(UHV)特高壓 Capacitor bank 電容器組 Domestic load 民用電 crusher 碎煤機(jī) Reserve capacity 備用容量 pulverizer 磨煤機(jī) Fossil-fired power plant 火電廠 baghouse 集塵室 Combustion turbine 燃?xì)廨啓C(jī) Stationary(moving)blade 固定 可動 葉片 固定(可動 可動)葉片 Right-of-way 線路走廊 Shaft 轉(zhuǎn)軸 Rectifier 整流器 Kinetic(potential)energy 動(勢)能 Inductive(Capacitive)電 勢能 感的(電容的 電容的)感的 電容的 Pumped storage power station 抽水蓄能電站 Reactance(impedance)電抗 阻抗 Synchronous condenser 同步調(diào)相機(jī) 電抗(阻抗 阻抗)Reactor 電抗器 Light(boiling)-water reactor 輕(沸)水反應(yīng)堆 沸 水反應(yīng)堆 電抗的,無功的 Reactive 電抗的 無功的 Stator(rotor)定(轉(zhuǎn))子 Phase displacement(shift)相移 轉(zhuǎn)子 Armature 電樞 Surge 沖擊 過電壓 Salient-pole 凸極 沖擊,過電壓 Retaining ring 護(hù)環(huán) Slip ring 滑環(huán) Carbon brush 炭刷 Arc suppression coil 消弧線圈 Short-circuit ratio 短路比 Primary(backup)relaying 主(后備 繼電保護(hù) 后備)繼電保護(hù) 后備 Induction 感應(yīng) Phase shifter 移相器 Autotransformer 自藕變壓器 Power line carrier(PLC)電力線載波 器)電力線載波(器 Bushing 套管 Line trap 線路限波器 Turn(turn ratio)匝(匝比 變比 Uninterruptible power supply 不間斷電源 匝比,變比 匝比 變比)Power factor 功率因數(shù) Spot power price 實時電價 分時(電價 電價)Tap 分接頭 Time-of-use(tariff)分時 電價

Recovery voltage 恢復(fù)電壓 XLPE(Cross Linked Polyethylene)交聯(lián)聚乙烯(電纜 電纜)交聯(lián)聚乙烯 電纜 Arc reignition 電弧重燃 Rms(root mean square)均方根值 Operation

mechanism 操動機(jī)構(gòu) RF(radio frequency)射頻 電氣工程專業(yè)英語詞匯表 4 Pneumatic(hydraulic)氣 動(液 壓)Rpm(revolution per minute)轉(zhuǎn) / 分 Nameplate 銘牌 LAN(local area network)局域網(wǎng) Independent pole operation 分相操作 LED(light emitting diode)發(fā)光二極管 Malfunction 失靈 Single(dual, ring)bus 單(雙,環(huán)形 母線 環(huán)形)母線 雙 環(huán)形 Shield wire 避雷線 IC(integrated circuit)集成電路 Creep distance 爬電距離 FFT(fast Fourier transform)快速傅立葉變換 Silicon rubber 硅橡膠 Telemeter 遙測 Composite insulator 合成絕緣子 Load shedding 甩負(fù)荷 Converter(inverter)換流器 逆變器 Lateral 支線 換流器(逆變器 逆變器)Bus tie breaker 母聯(lián)斷路器 Power-flow current 工頻續(xù)流 Protective relaying 繼電保護(hù) sparkover 放電 Transfer switching 倒閘操作 Silicon carbide 碳化硅 Outgoing(incoming)line 出(進(jìn))線 Zinc oxide 氧化鋅 進(jìn)線 相位超前(滯后 滯后)Phase Lead(lag)相位超前 滯后 Withstand test 耐壓試驗 Static var compensation(SVC)靜止無功補(bǔ)償 Dispatcher 調(diào)度員 Flexible AC transmission system(FACTS)靈活交流輸電系統(tǒng) Supervisory control and data acquisition(SCADA)監(jiān)控與數(shù)據(jù)采集 EMC(electromagnetic compatibility)電磁兼容 ISO(international standardization organization)國際標(biāo)準(zhǔn)化組織 GIS(gas insulated substation, geographic information system)氣體絕緣變電站 地理信息系統(tǒng) IEC(international Electrotechnical Commission)國際電工(技術(shù) 技術(shù))委員會 國際電工 技術(shù) 委員會 IEEE(Institute of Electrical and Electronic Engineers)電氣與電子工程師學(xué) 會(美)美 IEE(Institution of Electrical Engineers)

電氣工程師學(xué)會(英 電氣工程師學(xué)會 英)scale 刻度 量程 calibrate 校準(zhǔn) 刻度,量程 rated 額定的 terminal 接線端子 保險絲,熔絲 fuse 保險絲 熔絲 humidity 濕度 resonance 諧振 共振 moisture 潮濕 濕氣 諧振,共振 潮濕,濕氣 analytical 解析的 operation amplifier 運算放大器 numerical 數(shù)字的 amplitude modulation(AM)調(diào)幅 frequency-domain 頻域 frequency modulation(FM)調(diào)頻 time-domain 時域 binary 二進(jìn)制 operation amplifier 運算放大器 octal 八進(jìn)制 active filter 有源濾波器 decimal 十進(jìn)制 passive filter 無源濾波器 hexadecimal 十

第五篇：自動化專業(yè)英語重點

歐姆定律

Ohm’s law states that the voltage across the resistor is equal to the current through the resistor multiplied by the value of the resistance.法拉第定律

Faraday’s states that the voltage across the inductor is proportional to the rate of change with time of the current through the inductor.基爾霍夫第一定律

Kirchhoff’s first law states that the algebraic sum of the voltages around a closed loop is 0,or,in any closed loop, sum of the voltage rises must equal the sum of voltage drops.運放

The first law states that in normal op-amp circuits we may assume that the voltage difference between the input terminals is zero, that is, U+=U-.The second law states that in normal op-amp circuits both of the input currents may be assumed to be zero: I+=I-電路理論 theory of circuit

模擬電子技術(shù)analog electronics technology

數(shù)字電子技術(shù)digital electronics technology

電力電子技術(shù)power electronics technology

電磁場electromagnetic field

電機(jī)與拖動electric motor and electric drive

電力拖動自動控制系統(tǒng)electric drive automatic control system 自動控制理論automatic control theory

現(xiàn)代控制理論modern control theory

智能控制intelligent control

微機(jī)原理principle of microcomputer

計算機(jī)接口技術(shù)computer interface technology

計算機(jī)控制技術(shù)computer control technology

自動調(diào)節(jié)裝置automatic regulators

過程控制系統(tǒng)process control system

過程檢測及儀表process measurement and instrument

單片機(jī)原理與應(yīng)用principle and application of single-chip computer 可編程序控制器系統(tǒng)programmable logical controller system 現(xiàn)場總線技術(shù)fieldbus technology

嵌入式系統(tǒng)embedded system

供電技術(shù)power supplying technology

計算機(jī)仿真computer simulation

信號分析與處理signal analyzing and processing

集散控制系統(tǒng)distributed control system

樓宇自動化building automation

機(jī)器人學(xué)robotics

GTOgate turn-off thyristor門極可關(guān)斷晶閘管 GJTbipolar junction transistor雙極結(jié)型晶體管 SCR