电气工程与自动化专业外文翻译(中文)--毛细管电泳电化学检测方法在无机元素中的应用(节选)
(完整版)电气工程与自动化专业英语中文翻译
第一章 电路基本原理第一节 电流与电压u （t ）和i （t ）这两个变量是电路中最基本的概念，描述了电路中各种不同的关系。
电荷与电流电荷与电流的概念是解释一切电气现象的基础原则。
而电荷也是电路的最基本的量。
电荷是构成物质的原子的电气属性，单位是库仑（C ）。
通过基础物理学，我们了解到一切物质都是由被称为原子的基本粒子构造而成的，每个原子中都包含电子、质子和中子。
我们还知道电子上的电荷带负电，每个电子上的电量是1.60210×10-19库仑。
质子带与电子相等的正电荷。
原子上质子与电子的数目相等，使其呈中性。
我们来考虑电荷的运动。
电或电荷的独特之处就是它们可以移动，也就是说电荷可以从一个地方移动到另一个地方，从而转换成另外一种形式的能量。
当把一根导线接在电池（一种电源）的两端时，电荷受迫而运动；正电荷与负电荷分别向相反的两个方向移动。
这种电荷的移动产生了电流。
习惯上，我们把正电荷移动的方向或负电荷移动的反方向称为电流的方向，如图1-1所示。
这种说法是由美国科学家、发明家本杰明·富兰克林提出的。
即使我们知道金属导体中的电流是由于带负电荷的电子（运动）而产生的，（我们）也使用默认的习惯，将正电荷运动的方向定义为电流的方向。
因此，电流是单位时间内电荷的变化率，单位是安培（ampere ，A ）。
在数学上，电流i 、电荷q 和时间t 的关系为i=dtdq （1-1） 将等式的两边同时进行积分，则可得到电荷在时间t 和t 0之间的变化。
有q== 0t t idt （1-2）在等式（1-1）中我们给电流i 的定义表现了电流不是一个定值量，电荷随时间的变化不同，电流也与之呈不同的函数关系。
电压、电能与电功率使电子在导体中定向运动需要做功或能量转换。
功由外电动势提供，最典型的就是图1-1中的电池。
外电动势也可理解为电压或电位差。
电路中，a 、b 两点之间的电压U ab 等于从a 到b 移动单位电荷所需能量（所做的功），有U ab =dqdw （1-3） w 代表电能，单位是焦耳（J ）；q 代表电量。
电气工程及其自动化专业_外文文献_英文文献_外文翻译_plc方面.
1、外文原文A: Fundamentals of Single-chip MicrocomputerTh e si ng le -c hi p m ic ro co mp ut er i s t he c ul mi na ti on of both t h e de ve lo pm en t of the dig it al com pu te r an d th e in te gr at ed c i rc ui t arg ua bl y t h e tow m os t s ig ni f ic an t i nv en ti on s o f t he 20th c e nt ur y [1].Th es e tow type s of arch it ec tu re are foun d in sin g le -ch i p m i cr oc om pu te r. Som e empl oy the spli t prog ra m/da ta me mo ry of the H a rv ar d ar ch it ect u re , sh ow n in Fig.3-5A -1, oth ers fo ll ow the p h il os op hy , wi del y ada pt ed for gen er al -p ur po se com pu te rs and m i cr op ro ce ss o r s, o f ma ki ng no log i ca l di st in ct ion be tw ee n p r og ra m and dat a me mo ry as in the Pr in ce to n arch ite c tu re , show n i n Fig.3-5A-2.In gen er al ter ms a sin gl e -chi p mic ro co mp ut er i sc h ar ac te ri zed b y t he i nc or po ra ti on of a ll t he un it s of a co mp uter i n to a sin gl e d ev i ce , as sho wn inFi g3-5A -3.Fig.3-5A-1 A Harvard typeFig.3-5A-2. A conventional Princeton computerFig3-5A-3. Principal features of a microcomputerRead only memory (ROM.R OM is usua ll y for the pe rm an ent,n o n-vo la ti le stor a ge of an app lic a ti on s pr og ra m .M an ym i cr oc om pu te rs and m are inte nd e d for high -v ol um e ap pl ic at ions a n d he nc e t h e eco n om ic al man uf act u re of th e de vic e s re qu ir es t h at t he cont en t s o f t he prog ra m me m or y be co mm it t ed perm a ne ntly d u ri ng the man ufa c tu re of ch ip s .Cl ea rl y, thi s im pl ie s a r i go ro us app ro ach to ROM cod e deve l op me nt sin ce cha ng es can not b e mad e afte r manu f a c tu re .Th is dev e lo pm en t proc ess may invo lv e e m ul at io n us in g aso ph is ti ca te d de ve lo pm en t sy ste m wit h a h a rd wa re emu la tio n cap ab il it y as w el l as the use o f po we rf ul s o ft wa re too ls.So me man uf act u re rs pro vi de add it io na l RO M opt i on s by i n cl ud in g in their ra n ge dev ic es wit h (or int en de d fo r use wit h u s er pro gr am ma ble me mo ry. Th e sim p le st of th es e is usu al ly d e vi ce whi ch can op er at e in a micro p ro ce ssor mod e by usi ng som e o f the inp ut /outp u t li ne s as an ad dr es s an d da ta b us fora c ce ss in g ex te rna l mem or y. Thi s t y pe of de vi ce can beh av ef u nc ti on al ly as th e sing le chip mi cr oc om pu te r from whi ch it is d e ri ve d al be it wit h re st ri ct ed I/O and a mod if ied ex te rn al c i rc ui t. The use of thes e d ev ic es is com mo n eve n in prod uc ti on c i rc ui ts wher e t he vo lu me does no tj us ti f y t h e d ev el o pm en t c osts o f c us to m o n -ch i p R OM [2];t he re c a n s ti ll bea s ignif i ca nt saving i n I /O and o th er c h ip s com pa re d to a conv en ti on al mi c ro pr oc es sor b a se d ci rc ui t. Mor e ex ac t re pl ace m en t fo r RO M dev i ce s ca n be o b ta in ed in th e fo rm of va ri an ts w it h 'p ig gy -b ack 'E P RO M(Er as ab le pro gr am ma bl e ROM s oc ke ts or dev ic e s with EPROM i n st ea d o f RO M 。
外文翻译--毛细管电泳电化学检测方法中文版-精品
毕业设计（论文）外文翻译Electrochemical detection methods in capillary electrophoresis and applications to inorganic species 毛细管电泳电化学检测方法在无机元素中的应用电化学检测法在毛细管电泳和无机元素中的应用摘要：本文论述了毛细管电泳的三种电化学检测即电导检测法、安培检测法和电位检测法，并与较常见的光学检测方法进行了比较。
详细介绍了三种检测方法的原理及其实现方法，同时介绍了它们在无机元素分析物中的应用情况。
关键字：电化学检测、毛细管电泳；无机阴离子、金属阳离子。
目录：1.简介--------------------------------------------------------------12.电导检测法--------------------------------------------------------2 2.1原理----------------------------------------------------------2 2.2实现方法------------------------------------------------------3 3安培检测法--------------------------------------------------------63.1原理----------------------------------------------------------6 3.2实现方法------------------------------------------------------6 4电位检测法--------------------------------------------------------54.1原理----------------------------------------------------------9 4.2实现方法------------------------------------------------------9 5在无机元素中的应用------------------------------------------------9 6总结-------------------------------------------------------------10 7参考文献---------------------------------------------------------10 1．简介毛细管电泳的检测方法通常采用光学方法（激光诱导荧光检测法），而毛细管电泳的三种电化学检测法即电导测定法、安培检测法、和电位测定法是非常有吸引力的一种替代方法，尽管目前开发的还相对较少。
电气工程及其自动化专业 外文文献 英文文献 外文翻译 plc方面
1、外文原文（复印件）A: Fundamentals of Single-chip MicrocomputerTh e si ng le-ch i p mi cr oc om pu ter is t he c ul mi nat i on o f bo th t h e d ev el op me nt o f th e d ig it al com p ut er an d t he int e gr at ed ci rc ui ta r gu ab ly th e t ow m os t s i gn if ic ant i nv en ti on s o f t h e 20t h c en tu ry[1].Th es e to w typ e s of a rc hi te ctu r e ar e fo un d i n s in gl e-ch ip m i cr oc om pu te r. So m e em pl oy t he sp l it p ro gr am/d ata me mo ry o f th e H a rv ar d ar ch it ect u re, sh ow n i n -5A, ot he rs fo ll ow th e ph i lo so ph y, w i de ly a da pt ed fo r g en er al-p ur pos e c om pu te rs an d m i cr op ro ce ss or s, o f m a ki ng no lo gi c al di st in ct io n b e tw ee n p ro gr am a n d da t a m em ory a s i n th e Pr in cet o n ar ch it ec tu re,sh ow n in-5A.In g en er al te r ms a s in gl e-chi p m ic ro co mp ut er i sc h ar ac te ri zed b y the i nc or po ra tio n of al l t he uni t s o f a co mp ut er i n to a s in gl e dev i ce, as s ho wn in Fi g3-5A-3.-5A-1 A Harvard type-5A. A conventional Princeton computerFig3-5A-3. Principal features of a microcomputerRead only memory (ROM).R OM i s u su al ly f or th e p er ma ne nt, n o n-vo la ti le s tor a ge o f an a pp lic a ti on s pr og ra m .M an ym i cr oc om pu te rs an d mi cr oc on tr ol le r s a re in t en de d fo r h ig h-v ol ume a p pl ic at io ns a nd h en ce t he e co nom i ca l ma nu fa ct ure of t he d ev ic es r e qu ir es t ha t the co nt en ts o f the pr og ra m me mo ry b e co mm it te dp e rm an en tl y d ur in g th e m an uf ac tu re o f c hi ps . Cl ear l y, th is im pl ie sa ri g or ou s a pp roa c h t o R OM co de d e ve lo pm en t s in ce c ha ng es ca nn otb e m ad e af te r man u fa ct ur e .T hi s d e ve lo pm en t pr oce s s ma y in vo lv e e m ul at io n us in g a s op hi st ic at ed deve lo pm en t sy st em w i th a ha rd wa re e m ul at io n ca pa bil i ty a s we ll a s th e u se of po we rf ul so ft wa re t oo ls.So me m an uf act u re rs p ro vi de ad d it io na l RO M opt i on s byi n cl ud in g i n th ei r ra ng e de vi ce s wi th (or i nt en de d fo r us e wi th) u s er pr og ra mm ab le m em or y. Th e s im p le st of th es e i s us ua ll y d ev ice w h ic h ca n op er ate in a m ic ro pr oce s so r mo de b y usi n g so me o f th e i n pu t/ou tp ut li ne s as a n ad dr es s an d da ta b us f or acc e ss in g e xt er na l m e mo ry. T hi s t ype o f d ev ic e c an b e ha ve fu nc ti on al l y a s t he si ng le c h ip mi cr oc om pu te r fr om wh ic h i t i s de ri ve d a lb eit w it h r es tr ic ted I/O an d a mo di fie d e xt er na l ci rcu i t. T he u se o f t h es e RO Ml es sd e vi ce s is c om mo n e ve n in p ro du ct io n c ir cu it s wh er e t he v ol um e do es n o t ju st if y th e d e ve lo pm en t co sts of c us to m on-ch i p RO M[2];t he re c a n st il l b e a si g ni fi ca nt s a vi ng in I/O a nd ot he r c hi ps co mp ar ed t o a c on ve nt io nal mi cr op ro ce ss or b as ed c ir cu it. M o re e xa ctr e pl ac em en t fo r RO M d ev ic es c an b e o bt ai ne d in t he f o rm o f va ri an ts w i th 'pi gg y-ba ck'EP RO M(Er as ab le p ro gr am ma bl e ROM)s oc ke ts o rd e vi ce s w it h EP ROM i ns te ad o f R OM 。
电气工程及其自动化专业外文文献英文文献外文翻译方面
1、 外文原文（复印件）A: Fundamentals of Single-chip MicrocomputerT h e sin gle -ch ip mi c ro co m p u t e r is t h e cu lm in at io n of b ot h t h e d e ve lo p me nt of t h e d ig ita l co m p u t e r a n d t h e i nte g rated c ircu it a rgu ab l y t h e to w mo st s ign if i cant i nve nt i o n s of t h e 20t h c e nt u ry [1].T h ese to w t yp e s of arch ite ct u re are fo u n d in s in gle -ch ip m i cro co m p u te r. S o m e e mp l oy t h e sp l it p ro gra m /d at a m e m o r y of t h e H a r va rd arch ite ct u re , s h o wn in -5A , ot h e rs fo l lo w t h e p h i lo so p hy, wid e l y ad a p ted fo r ge n e ral -p u rp o se co m p u te rs an d m i cro p ro ce ss o rs , of m a kin g n o l o g i ca l d i st in ct i o n b et we e n p ro gra m an d d ata m e m o r y as in t h e P rin c eto n a rch ite ct u re , sh o wn in -5A.In ge n e ra l te r m s a s in g le -ch ip m ic ro co m p u t e r is ch a ra cte r ized b y t h e in co r p o rat io n of all t h e u n its of a co mp u te r into a s in gle d e vi ce , as s h o w n in F i g3-5A-3.-5A-1A Harvard type-5A. A conventional Princeton computerProgrammemory Datamemory CPU Input& Output unitmemoryCPU Input& Output unitResetInterruptsPowerFig3-5A-3. Principal features of a microcomputerRead only memory (ROM).RO M is u su a l l y fo r t h e p e r m an e nt , n o n -vo lat i le sto rage of an ap p l i cat io n s p ro g ram .M a ny m i c ro co m p u te rs a n d m i cro co nt ro l le rs are inte n d ed fo r h i gh -vo lu m e ap p l i cat io n s a n d h e n ce t h e e co n o m i cal man u fa c t u re of t h e d e vi ces re q u ires t h at t h e co nt e nts of t h e p ro gra m me mo r y b e co mm i ed p e r m a n e nt l y d u r in g t h e m a n u fa ct u re of c h ip s . C lea rl y, t h i s imp l ies a r i go ro u s ap p ro a ch to ROM co d e d e ve lo p m e nt s in ce ch an ges can n o t b e mad e af te r m an u fa ct u re .T h i s d e ve l o p m e nt p ro ces s m ay i nvo l ve e mu l at i o n u sin g a so p h ist icated d e ve lo p m e nt syste m wit h a h ard wa re e mu l at i o n capab i l it y as we ll as t h e u s e of p o we rf u l sof t war e to o l s.So m e m an u fa ct u re rs p ro vi d e ad d it i o n a l ROM o p t io n s b y in clu d in g in t h e i r ran ge d e v ic es w it h (o r inte n d ed fo r u s e wit h ) u se r p ro g ram m a b le m e mo r y. T h e s im p lest of t h e se i s u su a l l y d e v i ce wh i ch can o p e rat e in a m i cro p ro ce s so r mo d e b y u s in g s o m e of t h e in p u t /o u t p u t l in es as an ad d res s a n d d ata b u s fo r a cc es sin g exte rn a l m e m o r y. T h is t yp e o f d e vi ce can b e h ave f u n ct i o n al l y as t h e s in gle ch ip m i cro co m p u t e r f ro m wh i ch it i s d e ri ved a lb e it wit h re st r icted I/O an d a m o d if ied exte rn a l c ircu it. T h e u s e of t h e se RO M le ss d e vi ces i s co mmo n e ve n in p ro d u ct io n circu i ts wh e re t h e vo lu m e d o e s n ot ju st if y t h e d e ve lo p m e nt co sts of cu sto m o n -ch ip ROM [2];t h e re ca n st i ll b e a si gn if i cant sav in g in I/O an d o t h e r ch ip s co m pared to a External Timing components System clock Timer/ Counter Serial I/O Prarallel I/O RAM ROMCPUco nve nt io n al m i c ro p ro ces so r b ased circ u it. M o re exa ct re p l a ce m e nt fo rRO M d e v ice s can b e o b tain ed in t h e fo rm of va ria nts w it h 'p i g g y-b a c k'E P ROM(E rasab le p ro gramm ab le ROM )s o cket s o r d e v ice s w it h E P ROMin stead of ROM 。
电气工程及其自动化专业英语单词
current ['kʌrənt] n. 电流alternating current 交流电流direct current 直流电流current density 电流密度active current 有功电流reactive current 无功电流voltage ['vəultidʒ] n. 电压voltage drop 电压降落voltage gain 电压增益voltage divider 分压器voltage stabilizer 稳压器variable ['vεəriəbl] n. 变量；a.可变的，可调的，易变的complex variable 复变量dependent variable 因变量independent variable 自变量input variable 输入变量charge n. 电荷，充电；v. 充电，带电，起电charge distribution 电荷分布charge particle 带电粒子test charge 试验电荷positive charge 正电荷negative charge 负电荷coulomb n. 库仑（电荷的单位）coulomb meter 库仑计circuit ['sə:kit] n. 电路circuit diagram 电路图analogue circuit 模拟电路short circuit 短路open circuit 开路active circuit 有源电路passive circuit 无源电路underlying [,ʌndə'laiiŋ] a. ①基本的，根本的②潜在的，在下（面）的，下伏的electron [i'lektrɔn] n. 电子magnitude ['mæɡnitju:d] n. 大小，尺寸，数量，数值electromotive a. 电动的，起电的electromotive force 电动势ampere ['æmpεə] n. 安，安培（电流的单位）ampere meter 安培ampere turn 安匝volt ampere 伏安integrate ['intiɡreit, 'intiɡrit, -ɡreit] v. 积分，求积分work n. 功potential a.势的，位的，电位的；n.势（能）,位(能), 电势(位,压) potential difference 电位差，电势差earth potential 地电势（位）potential energy 势（位）能reference potential 参考（基准）电位rectangular ['rek'tæŋɡjulə] a. 矩形的，直角的，正交的joule [dʒu:l, dʒaul] n. 焦尔（能量、热量、功的单位）volt [vɔlt] n. 伏特（电压、电位、电势的单位）electron volt 电子伏特voltaic a. 动[流]的，电压的，电镀的，伏打(式)的voltaic battery 伏打电池convention [kən'venʃən] n. 习惯，惯例，常规by convention 按照惯例reference direction 参考方向polarity [pəu'lærəti] n. 极性power n. ①功率，效率②动力，电力，能力，电源③乘方，幂watt n. 瓦特（功率的单位）time-varying a. 时变的instant n. 瞬间，瞬时，即刻，时刻；a.立刻的，直接的，紧急的，迫切的instantaneous [,instən'teinjəs] a.瞬时（作用）的，瞬息的，即刻的instantaneous power 瞬时功率passive a. ①无源的②消极的，被动的；n. 无源passive network 无源网络algebraic a. 代数的active a. ①有源的，有功的，有效的②活动的，主动的，积极的③活性的，放射的，激励的active element 有源元件resistor n 电阻，电阻器capacitor n. 电容器inductor n. 电感器source n. 电源，（光，能，动力，信号，辐射，根，来，起）源voltage source 电压源current source 电流源ideal independent source 理想独立源constant voltage source 恒定电压源independent source 独立源dependent source 受控源controlled source 受控源voltage-controlled voltage source电压控制电压源current-controlled voltage source电流控制电压源voltage-controlled current source电压控制电流源current-controlled current source电流控制电流源generator n. ①发电机②（脉冲，信号，气体）发生器，振荡器，加速器AC generator 交流发电机diamond-shaped a. 菱形的transistor n. 晶体管，半导体管operational a. ①运算的，计算的②操作的，工作的，业务的，运转的amplifier n. 放大器integrated circuit 集成电路token n. ①标记，象征②特征by the same token 同理，同样；另外，还有Ohm 欧姆（电阻，电抗，阻抗的单位）Ohm's Law 欧姆定律resistance n. ①电阻,电阻器（件,装置）②阻力，阻尼③抵抗，抵制，反对resistance load 电阻(性)负载magnetic resistance 磁阻measuring resistance 标准电阻,测量用电阻rearrange v. 重新整理（安排,布置,排列）,调整linear a. ①线性的，一次的②（直）线的，直线型的，线状的linear resistor 线性电阻nonlinear a. 非线性的，非直线的nonlinear resistor 非线性电阻incandescent a. 白炽（热）的，炽热的incandescent lamp 白炽灯voltage-current characteristic 伏安特性short circuit 短路open circuit 开路conductance n. ①电导，导电性，导纳②传导（性，率，系数），导率siemens n. 西门子（电导单位）network n. 网络，电路，电网linear time-varying network 线性变参数网络network analyzer 网络分析器configuration n. 结构，构造topology n. 拓扑，拓扑学，拓扑结构node n. ①节点，结点，交点，叉点②（波）节，结，节branch n. ①支路，支线，支脉②分支（路，线，流）③部门，分部，分行dimension n. ①维（数），度（数）②尺寸，线度③量纲，因次loop n. 回路，闭合电路，环路，循环，环clockwise a.; ad. 顺时针方向（的）counterclockwise a.; ad. 逆时针方向（的）nodal a. 节点的，结点的，交点的，节的，结的nodal analysis 节点分析mesh n. 网孔，网格，网眼，网状mesh analysis 网孔分析simultaneous a. ①联立（方程）的②同时（存在，发生）的，一起的，同步的quotient n. ①商（数），系数②份额，应分得的部分determinant n. ①行列式②决定因素，遗传素datum n. ①基准（点，线，面），基标②数据，资料，信息chassis n. 底盘，底（盘）架，底板（座）planar a. ①平面的，平的②二维的，二度的error-minimizing a. 令错误最少的symmetry n. 对称（性，现象），均称，调和coefficient n. ①系数，因数，常数，率②折算率phasor n. 相量，相图，相位复（数）矢量phasor diagram 相量图sinusoidal a. 正弦（波，式，形，曲线）的steady-state a. 稳态的domain n. ①（定义）域，区（领）域，定义范围②区，范围，界time domain 时域frequency domain 频域transform v.; n. ①变换，改变，转换，换（折）算②变换式，反式magnitude n. ①大小，幅值，幅度，量，数量，尺寸，②等级，量级phase n. ①相（位）②（发展）阶段，时期，局面③方（侧）面three-phase 三相single-phase 单相phase voltage 相电压phase current 相电流(be) out of phase 异相（的）lag n.; v. 滞后，落后，迟（时）滞lead v. 超前，提前，领先AC = alternating current 交流电流，交流电，交流DC = direct current 直流电流，直流电，直流theorem n. 定理，原理（则），命题，法则Thevenin's theorem 戴维南定理superposition n. 叠加，重叠superposition theorem 叠加定理transmission n. 输电，传（输，递，送，播，导）equivalent a. 等效的，等值的，等同的amplitude n. 振幅，幅度，波幅effective a. 有效的，等效的，生效的，能行的，有作用的，有影响的sequence n. 顺序，次序，时序，序列，系列positive sequence 正序negative sequence 负序，反序phase sequence 相序load n. 负荷，负载impedance n. 阻抗topologically ad. 在拓扑结构上，从拓扑结构electronics n. 电子学，电子仪器，电子设备，电子线路understatement n. 轻描淡写，有节制的表达omnipresent a. 无处不在的，普遍存在的electronic a. 电子（学）的transaction n. ①交易，业务②办理，处理，执行，记录digital a. 数字的，数字式的，计数的espionage n. 谍报，间谍活动，密探，监视signal-processing a. 信号处理的analog n. ①模拟（量，装置，设备，系统）②类似，类比，比拟velocity n. 速度，速率thermocouple n. 热电偶discrete a. 离散的，不连续的，分散的household a.; n. 家用的，普通的，一般用途的，家庭，家，户thermostat n. 恒温器，定温器，温度自动调节器preset v.; a. ①预定，预置，（预先）调整②安装程序，给定程序的switch n. 开关；v. 接通或关断，转变，换接A/D = Analog-to-Digital 模数转换，模数变换D/A = Digital-to-Analog 数模转换，数模变换transducer n. 传感器，变送器，发射器，换能器，换流器excitation n. ①激励，激发，激磁②刺激，干扰display v. 显示，显像，表现，陈列，展览；n. 显示，指示，表现Boolean 布尔的logic gate 逻辑门symbolic a. 符号的，记号的，象征（性）的proof n. 证明，证实，证据；v. 检验；a. 试验过的，合乎标准的，防……的singularly ad. 非凡地，特殊地，奇异地，单独地Manipulation n. 处理，计算，操作，控制，管理binary n.; a. 二进制的，二进位的，二元的，二成分的②二，双，复arithmetic n. 算术，计算，运算；a. 算术的，计算的，运算的associative a. 结合的，联合的，相关的，commutative a. 交换的，换向的，代替的，相互的distributive a. 分配的，分布的，个别的truth table 真值表multiplication n. ①乘法，相乘②增加，增多，增殖，倍增addition n. ①加法②增加，附加，相加conjunctive a. ①合取的，逻辑乘的②连接的，连系的disjunctive a. 析取的，分离的，转折的identity n. 单位，同一，完全相同，一致，恒等，身份null n. ; a. ①零的，空的，无②不存在的，没有的complement n.; a. ①补码，补数，余的，补的②补充，互补displacement n. ①位移，变位，移动，平移，偏移②排（水，汽，气，液）量intensity n. ①强度，密度，亮度，光强②强烈，紧张regulation n. ①调整，校准，控制②规则，规章，规程，章程，条例，细则quantize v. ①量化，分层，取离散值②（使）量子化clarity n. 清晰，清晰度，透明，透明度sine n. 正弦fidelity n. 保真，保真度，逼真，逼真度disc n. 盘，圆片，唱片sample v. 采样，取样，抽样；n. 采样，样品，标本，模型，实例straightforward a. ①直接的，明确的，坦率的②简单的，易懂的③顺向的，流水作业的sensitive a. 敏感的，灵敏的，易感光的；n. 对……敏感的材料sensitive element 敏感元件voltage divider 分压器photoelectric a. 光电的piezoelectric a. 压电的amplification n. 放大（率，系数，倍数，作用），加强，增强pulse n. 脉冲，脉动integral a. 积分的，累积的，整数的，整体的，总体的；n. 积分，整数，整体parameter n. 参数，参量，系数precision n. 精度，精密，精确； a. 精确的，精密的incompatible a 不相容的，不一致的concurrently ad. 同时microsecond n. 微秒bit n. 位，比特，二进制数full-scale a. ①满刻度的，满标度的，满量程的②完全的，全面的quantization n. 量化，分层，把连续量转换为数字byte n. 字节code n. 编码，密码，符号；v. 编码，译码encode v. 编码，译码，把……译成电码weighted a. ①加权的，权重的，加重的②受力的，负载的receipt n. 收到，接收，收据amplifier n. 放大器register n. ①寄存器，②记录，登记，注册，挂号；v. ①登记，注册，挂号②记数，存储parallel-in 并联输入的parallel-out 并联输出的resolution n. 分辨率，鉴别力gain n. 增益，放大系数，放大率，增量drift n. 漂移，偏移operational amplifier 运算放大器difference amplifier 差动放大器differential a. 微分的，差动的，差分的，差别的；n. 微分，差动，差分，差别feedback n. 反馈，回复，反应stability n. ①稳定性，稳定度，安定性，复原性②耐……性，耐久性capacitive a. 电容性的，电容的，容性的coupling n. 耦合,偶合,连接；a. 耦合的,连接的long-term a. 长期的，远期的power-supply n. 电源solid-state a. 固态的microvolt n. 微伏saturate v. 使饱和；a. 饱和的，浸透的comparator n. 比较器swing v.; n. 摇摆，摆动single-ended a. 单端的two-sided a. 双边的，双侧的，两边的，两方面的frequency band 频带semiconductor n. 半导体power electronic n. 电力电子loss n. 损耗，损失parasitic a. 寄生的，附加的winding n. ①绕组，线圈②一圈，一转transformer n 变压器，变换器，变量器dielectric n. 介质，电介质，绝缘材料；a. 绝缘的，介电的，介质的，不导电的eddy n. 涡流，旋涡； a. 涡流的，涡旋的；v. 涡流，起旋涡hysteresis n. 磁滞，滞后，迟滞on-state a. 通态的，接通的，开态off-state a. 关态的，断开的，断态的microamp n. 微安milliamp n. 毫安steering n. 转向，操纵，控制，调整buildup n. ①形成，产生，出现②增加，增大，上升③建造，建起ramp v. 斜变，倾斜，直线上升waveform n. 波形clamp v. 箝位，定位，使固定snubbering n. 缓冲zero-voltage 电压过零的zero-current 电流过零的ripple n.波纹，波度，微波rectifier n. 整流器isolation transformer 隔离变压器interface n. 接口Buck converter 降压式变换器，降压式斩波器Boost converter 升压式变换器，升压式斩波器Buck-Boost converter 升/降式变换器，升/降式斩波器quadrant n.象限，四分之一圆周，九十度弧step-down a. 降压的，降低的step-up a. 升压的，升高的dual a. 二重的，对偶的filter n.; v. 滤波，过滤periodically ad. 周期地portable a. 手提的，轻便的，可携带的sink n. 换能器，变换器，散热器，汇点，收点，穴hypothetical a. 假设的，假定的，有前提的duty ratio 功率比，能量比turn ratio 匝数比PWM pulse width modulation 脉冲宽度调制switch-mode power supplies 开关电源inverter n. 逆变器uninterruptible power supplies (UPS) 不间断电源single-phase a. 单相的three-phase a. 三相的parameter n. 参数unidirectional a. 单极性的，单向的electromagnetic a. 电磁的relay v. 中继，转播；n. 继电器synchronous motor 同步电动机torque n. 转矩non-sinusoidal a. 非正弦的low-pass 低通smoother n.滤波器，整平器polarity n. 极性bidirectional a. 双向的harmonics n. 谐波high order harmonics 高次谐波induction n. 感应square-wave 方波response time 响应时间notching n. ; a. 阶梯式，下凹的，切口，开槽step pulse 阶跃脉冲induction machine 感应电机horseshoe n. ①马蹄形，U形②马蹄铁magnet n. 磁铁，磁石，磁体horseshoe magnet 马蹄形磁铁permanent magnet 永久磁铁perpendicular a. ①（与……）垂直的②直立的；n. 垂直，正交，竖直magnetic field 磁场induction machine 感应电机horseshoe n. ①马蹄形，U形②马蹄铁magnet n. 磁铁，磁石，磁体horseshoe magnet 马蹄形磁铁eddy n. 涡流，涡旋permanent magnet 永久磁铁perpendicular a. ①（与……）垂直的②直立的；n. 垂直，正交，竖直magnetic field 磁场bar n. ①线棒，导条②条，杆slot n. ①槽②隙缝lamination n. ①叠片，冲片②分层③薄片braze v.铜焊，钎焊solder n.焊料，接合物；v. 焊，焊接short-circuiting a. 使短路的ring n. 环squirrel cage 鼠笼core n. ①铁芯②心，核心coil n. 线圈，绕组random-wound 散绕form-wound 模绕insulation n. 绝缘performance characteristics 工作特性air-gap 气隙polyphase n.; a. 多相，多相的motoring n.; a. 电动机运行plugging 反向制动，反相序制动控制generating n.; a. 发电机运行synchronous speed 同步速breakdown torque 失步转矩，停转转矩locked-rotor torque 止转转矩，起动转矩breakaway n. ①起步，起动②分离，脱离breakaway force 起动力rated a. ①额定的，标称的②计算的，设计的full-load a. 满（负）载的overhauling a. 检修的，大修的prime mover 原动机induction generator 感应发电机，异步发电机wind-driven generator 风力发电机inrush current 涌流synchronous machine 同步发电机armature n. 电枢armature winding 电枢绕组field winding 励磁绕组，磁极绕组quantitative a. 量的，数量的，定量的salient a. 凸出的，凸的，突出的salient pole 凸极saturation n. 饱和，饱和度cylindrical-rotor 隐极式转子，鼓极转子steam-turbine-driven generator 汽轮发电机Y-connected windings 星形连接绕组turbine generator 涡轮发电机，汽轮发电机，水轮发电机cps = cycles per second 周/秒，赫rpm = revolutions per minute 转/分steam turbine 汽轮机rating n. 额定值，额定参数；标称值，定额efficiency n. 效率wedge n. 楔[形]，楔形物，槽楔；v. 楔进，斜楔concentric coil 同心线圈slip ring 滑环lead n. ①导线，导管，引线②铅；v. 超前，导前，引导carbon brush 碳刷mmf = magnetomotive force 磁动势step wave 阶跃波diameter n. 直径vibration n. 振荡field current 励磁电流exciter n. 励磁机shaft n. 轴regulation n. 调节stability n. 稳定性，稳定ventilation n. 通风，换气，通风装置flux n. 通量，磁力线transformer n. 变压器wrap v.; n. 包裹，包扎，缠绕，卷ferromagnetic core 铁磁芯primary winding 一次绕组，原绕组，初级绕组secondary winding 二次绕组，副绕组，次级绕组tertiary winding 三次绕组，第三绕组power transformer 电力变压器core form 铁芯式shell form 壳式innermost a. 最内部的，最里面的，最深处的leakage flux 漏磁通unit transformer 单元（机组）变压器substation transformer 配电变压器distribution transformer 配电变压器potential transformer 电压互感器current transformer 电流互感器copper loss 铜耗hysteresis loss 磁滞损耗，磁滞损失reluctance n. 磁阻self-inductance 自感应core-loss 铁芯损耗distill 提取…精华，蒸馏instruction 指令document n.文件thermostat 恒温器，定温器，温度自动调节器audio signal n. 声频信号，音频信号program n. 程序keyboard n. 键盘software n. 软件central processing unit 中央处理单元workstation n. 工作站videogame console 视频游戏操作板mainframe n. 主机，主机架supercomputer 超级计算机server 服务器client 客户microcomputer 微型计算机desktop computer 台式计算机notebook computer 笔记本电脑handheld computer 掌上电脑computer-aided 计算机辅助的three-dimensional 三维的animated graphics 动画图像local area network ( LAN)局域网LCD screen ( liquid crystal display screen ) 液晶显示屏display device 显示设备mouse n. 鼠标floppy disk drive 软盘驱动器hard disk drive 硬盘驱动器CD-ROM drive CD-ROM驱动器DVD drive DVD驱动器CD-writer CD写入器，刻录机sound card 声卡rudimentary a. 基本的，基础的，初步的，根本的built-in a. 嵌入的，安装在内部的，内装的，机内的modem n. 调制解调器peripheral device 外围设备scanner n. 扫描仪digital camera 数码相机joystick n. 控制杆graphics tablet 图形板operating system 操作系统miniaturized a. 小型的，小型化的ALU (arithmetic logic unit) 算术逻辑单元control unit 控制单元register n. 寄存器cycle n. 周期clock cycle 时钟周期word size 字长cache n. 高速患缓冲存储器instruction set 指令集megahertz n. 兆赫，兆赫兹gigahertz n. 吉赫，吉赫兹motherboard n. 母板, 主板chip n. 芯片，晶片，组件CISC (complex instruction set computer) 复杂指令集计算机RISC (reduced instruction set computer) 简化指令集合计算机serially ad. 串行地serial processing 串行处理parallel processing 并行处理pipelining a. 流水线的RAM (Random Access Memory) 随机存储器operating system 操作系统plug v. 插入，插上；n. 插头，插入物microscopic a. 微观的，细微的，显微（镜）的，显微的charge v. 充电，带电，起电；n. 电荷，充电discharge v. 放电bit n. 位byte n. 字节volatile a. 易失的，挥发的，易挥发的，易变的，短暂的megabytes (MB) 兆字节software package 软件包install v. 安装virtual memory 虚拟存储器nanosecond 纳秒SDRAM (synchronous dynamic RAM) 同步动态RAMROM (Read-Only Memory) 只读存储器startup n. 起动caterpillar-like a. 履带式的DIP ①= double in-line package 双列直插式组件②=dual in-line package 双列式封装BIOS (basic input/output system) 基本输入输出系统CMOS (complementary metal oxide semiconductor memory)rechargeable battery 充电电池setup 安装update v. 更新，修改，校正slot n. 槽expansion slot 扩展槽port n. 端口data bus 数据总线expansion bus 扩展总线socket n. 插座，插口expansion card 扩展卡adapter n. 适配器USB universal series bus 通用串行总线storage device 存储设备download v.; n. 下载ISA (industry standard architecture)工业标准结构PCI (peripheral component interconnect) 外部设备互连video capture card 视频捕获卡interface n.; v. 接口AGP (accelerated graphics port) 加速图形端口serial port 串行端口jack n. 插座，插孔，插口，弹簧开关protrude v.（使）伸出，突出，推出cutout n. 中断装置，断流器，断路器CRT (cathode ray tube) 阴极射线管LCD (liquid crystal display) 液晶显示dots of color 色点stand-alone 独立的diagonally ad. 对角地dot pitch 点距clarity n. 清晰度pixel n. 像素，图素，像元resolution n. 分辨率, 分辨度ink jet 喷墨printout n. 打印输出nozzle n. 喷管，喷头，喷嘴cartridge n. 夹头，卡盘cyan a.; n. 蓝绿色的，蓝绿色magenta a.; n. 深红色的，深红色photocopier n. 照相复印机，影印机light-sensitive a. 光敏的drum n. 磁鼓electrostatically ad. 静电地multicolored a. 多色的default n. 缺省，默认ribbon n. 色带module n. 模件，组件，模块document n. 文件，文献，公文Web browsing 网页浏览programmer n. 程序员computer language 计算机语言binary a.；n. 二进制的，二进位source code 源代码high-level language 高级语言machine language 机器语言batch n. 批，一批object code 目标代码compiler n. 编译程序interpreter n. 解释程序script n. 脚本operand n. 操作数octal a. 八进制的hexadecimal a. 十六进制的assembler n. 汇编程序system software 系统软件application software 应用软件operation system 操作系统user interface 用户界面，用户接口menu n. 菜单toolbar n. 工具条button n. 按钮compatible a. 兼容的，可共存的，兼容制的graphical user interface 图形用户界面click v. 按file management system 文件管理系统bootstrap n. 引导bootstrap program 引导程序single-user operating system 单用户操作系统multiuser operating system 多用户操作系统multitasking operating system 多任务操作系统data base 数据库redundant a. 冗余的，多余的，fault-tolerant a. 容错的redundancy n. 冗余disk array 磁盘阵列home computer 家用电脑dial up 拨号repository n. 仓库twisted-pair 双绞的，双绞线的coaxial cable 同轴电缆fiber-optic cable 光缆，光纤电缆microwave n. 微波infrared a. 红外线的；n. 红外线shielded a. 屏蔽的unshielded a. 非屏蔽的strand n. 股，股线bandwidth n. 带宽high-bandwidth 高带宽low-bandwidth 低带宽broadband n. 宽带narrowband n. 窄带hub n. 集线器router n. 路由器gateway n. 网关repeater n. 中继器，转播器electric power system 电力系统cable n. 电缆，缆，钢丝绳；v. 架设电缆，敷设电缆fuse n. 保险丝，熔断器；引信；v. 熔化，熔断meter n. 米；测量仪表，计量器customer n. 客户，用户radius n. 半径incandescent lamp 白炽灯transmission line 输电线路power loss 功率损耗voltage drop 电压降落AC transmission 交流输电transmission system 输电系统utility n. 公用事业，效用，中心电站flexibility n. 灵活性，机动性，适应性；柔性，柔度interconnection n. 相互连接，互联asynchronous a. 异步的nominal frequency 额定频率misoperation n. 误操作，误动作paramount a. 最高的，头等的；高过，优于in parallel 并联地synchronously ad. 同步地facility n. ①容易，方便②灵活，熟练③（便利）条件④（常用复数）设备，装置，工具，器材primary energy 一次能源fossil n. 化石，石块hydraulic a. 水力[学]的，水压的，液压的，液力的mechanical energy 机械能switching device 开关装置，开关设备subtransmission n. 二次输电subtransmission system 分支输电系统，二次输电系统distribution system 配电系统substation n. 变电所，变电站，分站，分所feeder n. 馈线，馈电电路redundancy n. 多余，冗余contingency n. 意外事故，偶然事故reliable a. 可靠的bus n. 母线overload n. 过载，超载，过负荷optimal a. 优化的，最优的，最佳的production cost 生产成本，生产费用hydro-generation n. 水力发电dry period 枯水期replenishment n.（再）补充，充实，充满economic dispatch 经济调度economic operation 经济运行security n. 安全性，可靠性emission n. 排放，放出，散放tie-line n. 联络线var flow 无功潮流throttle n. 阀门，节流阀，调速汽门thermal unit 热力机组，热力单位magnetizing current 激磁电流，励磁电流electric clock 电钟active power balance 有功功率平衡supplementary control 辅助控制load-frequency control (LFC) 负荷频率控制speed governor 调速器underfrequency load shedding 低周减载，低频减负荷automatic generation control (AGC) 自动发电控制stabilize v. 使……稳定reactive power 无功功率active power 有功功率automatic voltage regulator 自动电压调节器shunt capacitor 并联电容器，并联电容shunt reactor 并联电抗器，并联电抗synchronous condenser 同步调相机static var compensators (SVCs) 静止无功补偿器series capacitor 串联电容器tap-changing transformer 可调分接头变压器booster n. 升压器，增压器，加压泵angular a. 角的，角度的power versus angle relationship 功角关系synchronous reactance 同步电抗，功率—角度关系excitation voltage 励磁电压angular displacement 角位移rotor angle stability 转角稳定性，功角稳定性voltage stability 电压稳定性electromechanical a. 机电的electromagnetic a. 电磁的equilibrium n. 平衡，均衡mechanism n. 机理，机制；机构，装置；结构synchronism n. 同步accelerate v. 加速，促进decelerate v. 减速mechanical torque 机械转矩electrical torque 电气转矩outage n. 停电，断电，中断，停运，停机，事故short-circuit fault 短路故障power-angle relationship 功角关系fluctuation n. 波动，起伏small-signal stability 小信号稳定性transient stability 暂态稳定性small disturbance stability 小干扰稳定性damp v. 阻尼，（使）减弱，减幅；n. 阻尼，衰减damping torque 阻尼转矩instability 不稳定性out of step 失步synchronizing torque 同步转矩non-oscillatory a. 非振荡的，非周期的disturbance n. 扰动，干扰post-disturbance a. 干扰后的，扰动后的，事故后的unstable a. 不稳定的first-swing n.; a. 第一次摇摆power system protection 电力系统保护，电力系统继电保护abnormality n. 异常，反常，不正常sense v. 检测，读出，断定；感觉，感受，感到relay n. 继电器，中继器；v. 中继，转播，用继电器控制circuit breaker 断路器trip coil 跳闸线圈，脱扣线圈electromechanical relay 电磁继电器solid state 固态static relay 静态继电器，无触点继电器self-checking 自检，自校maloperation n. 误操作，误动作，维护不当energize v. 激励，激磁，驱动，通以电流overcurrent relay 过电流继电器undervoltage relay 低电压继电器，欠压继电器underfrequency relay 低周继电器，低频继电器directional relay 方向继电器thermal relay 热继电器，温度继电器，热敏继电器phase sequence relay 相序继电器negative sequence relay 负序继电器zero sequence relay 零序继电器differential relay 差动继电器percentage differential relay 比率差动继电器distance relay 距离继电器plane impedance relay 平面阻抗继电器angle impedance relay 角度阻抗继电器angle admittance relay 角度导纳继电器Mho relay 姆欧继电器，电导继电器offset relay 偏置继电器restricted relay 制约式继电器pilot relay 控制继电器，辅助继电器wire pilot relay 有线控制继电器carrier channel pilot relay 载波控制继电器microwave pilot relay 微波控制继电器transductor relay 饱和电抗型继电器rectifier bridge relay 整流桥型继电器electronic relay 电子继电器3-φ fault 三相故障3-φ to ground fault 三相接地短路故障double line to ground fault 两相短路接地故障line to line fault 相间短路故障single line to ground fault 单相接地故障ground fault 接地故障internal fault 内部故障external fault 外部故障interturn fault 匝间故障overvoltage n. 过电压overheat v. 过热，使过热overheating n. 过热，超温lubrication oil 润滑油out of step 失步overspeed n.; v.; a. 超速，过速，超转速，过速的miscellaneous a. 杂的，杂项的，各种的；n. 其他resonance n. 谐振，共振trip v. （使）断开，（使）跳闸，切断，关闭mechanical resonance 机械共振hydro turbine 水轮机inertia n. 惯性，惯量undercurrent n. 欠电流，电流不足；a. 欠电流的，低电流的arcing n. 飞弧，发弧，弧击穿overexcitation n. 过励air-blast circuit breaker 压缩空气断路器oil circuit breaker 油断路器，多油断路器quench v.; n. 熄灭，熄弧arc-quenching n. 灭弧minimum-oil circuit breaker 少油断路器magnetic air circuit breaker 磁吹断路器SF6 circuit breaker 六氟化硫（SF6）断路器vacuum circuit breaker 真空断路器interrupting capability 开断容量，遮断容量deion grid 去电离栅极，灭弧栅interrupting time 开断时间，遮断时间nameplate n. 铭牌operating mechanism （断路器的）操动机构horn gap 角隙，角放电器火花源horn gap contact 带灭弧功能的触头air switch 空气开关spring-action 弹簧动作spring-action driving mechanism 弹簧操作机构insulating barrier 绝缘隔板arc chute 灭弧罩，灭弧隔板，电弧隔板blowout coil 灭弧线圈，消弧线圈arc-extinguishing a. 灭弧的，消弧的molded-resin 模制树脂，浇铸树脂trigger n. 触发，起动；v. 触发，起动，激发，引起outdoor a. 户外的live-tank 带电箱体dead-tank 接地箱体gas-insulated substations (GISs) 气体绝缘变电站vacuum-bottle n. 真空罐switchgear n. 开关设备，配电设备，配电装置voltage-to-current ratio 电压电流比time-delayed relay 延时继电器timer relay 时间继电器overreach v.; n. 越过，伸得过长current transformer 电流互感器voltage transformer 电压互感器remote back-up 远后备arcing fault 闪络故障underreach v.; n. 达不到backup n. 后备，支持，备份；a. 后备的，备用的，备份的response n. 响应，反应lightning n. 雷（电），闪电；a. 闪电（般）的lightning arrester 避雷器overhead ground wire 架空地线surge n.; v. 电[浪]涌，冲击，波动surge arrester 避雷器over-voltage n. 过电压switching surge 操作冲击，操作浪涌clip n. 线夹，接线柱，夹子；v. 夹住，箝，钳牢，固定ionizer n. 电离装置，游离装置silicon carbide 碳化硅，金刚砂spark gap 火[电]花隙，放电器，避雷器valve block 阀片break down 击穿，断裂，破裂arc chamber 电弧室zinc-oxide n.氧化锌metal-oxide varistor 金属氧化物压敏电阻器basic impulse insulation level (BIL) 基本冲击绝缘水平coal-fired a. 燃煤的furnace n. 炉，炉膛，燃烧室pulverizer n. 磨煤机，粉煤机preheated a. 预热的boiler n. 锅炉，蒸发器，蒸汽发生器flue gas 烟气，废气，排烟electrostatic a. 静电的precipitator n. 除尘器electrostatic precipitator 电除尘chimney n.（高）烟囱，烟筒coal hopper 煤斗burner n. 燃烧器，喷燃器cooling tower 冷却塔feed water pump 给水泵psi 磅/平方英寸（压强单位）shutoff n. 关闭，切断，断路exhaust steam 乏汽heater exchanger 热交换器condenser n. 凝结器，冷凝器feed-water 给水turbogenerator n. 涡轮发电机single-stage turbine 单级汽轮机thermal efficiency 热效率multi-stage turbine 多级汽轮机tandem a.; ad. 级联（的），串联的，前后排列的；n. 前后排列使用的一组事物in tandem 前后地，协力地，相互合作地superheater n. 过热器high-pressure turbine 高压汽轮机reheater n. 再热器intermediate-pressure turbine 中压汽轮机low-pressure turbine 低压汽轮机cogeneration n. 热电联产，热电联供acid rain 酸雨greenhouse effect 温室效应hydropower n. 水力，水力发电cubic a. 立体的，三次的，体积的，正六面体的dam n. 坝，堰penstock n. 水道，压力水管hydroplant n. 水电厂，水电站high head 高水头low head 低水头tail race 尾水渠，退水渠nozzle n. 喷嘴periphery n. 周边，周围，外围，范围blade n. 叶片，轮叶spoked wheel 辐轮start up 起动，开动，触发thermal plant 热电厂dispatcher 调度员sparingly 节省地，有节制地，少量地spillway n. 泄水道，溢水孔base-loading 基荷pumped storage 抽水蓄能peak load 高峰负荷off-peak 非峰值的on-line 在线daily load-demand curve 日负荷曲线shaves the peaks （负荷曲线的）削峰fills the troughs （负荷曲线的）填谷bucket wheel rotor 勺轮转子fission n.; v. 裂变，分裂，剥离nuclear power plant 核电站，核电厂reactor n. 反应堆，反应器；电抗器，电抗线圈coolant n. 冷却剂，冷却液light-water reactor 轻水反应堆boiling-water reactor （BWR）沸水反应堆pressured-water reactor (PWR) 压水反应堆reactor core 反应堆堆芯，反应堆活性区bypass valve 旁路阀门reactor coolant pump 反应堆冷却泵moderator n. 减速剂，慢化剂self-regulation 自调整negative feedback 负反馈pressurize v. 增压，对……加压，产生压力pressurizer n. 保持压力装置，增压装置setpoint 设定值，给定值make-up 补给[水]，补充let-down 下泄control rod （反应堆的）控制棒，控制杆visualize v. 使……可视化，具体化，形象化manoeuvre n. 调动，策略；v. 调动，操纵automatic control system 自动控制系统reconfigurable a. 可重构的，可再构的open-loop control system 开环控制系统functional block diagram 功能框图feedback n. 反馈closed-loop control system 闭环控制系统single-input single-output (SISO) 单输入单输出continuous control 连续控制discontinuous control 断续控制periodically ad. 周期地sample n. 采样，取样，样品，试件；v. 采样discrete-data 离散数据的sampled-data 采样数据的relay feedback control system 继电反馈控制系统servomechanism n. 伺服机构，伺服系统，随动系统multiple-input multiple-output (MIMO) 多输入多输出modern control theory 现代控制理论trajectory n. 轨迹，轨道multivariable 多变量differential equation 微分方程Laplace transform 拉普拉氏变换frequency-response 频率响应root-locus 根轨迹time response 时域响应state variable 状态变量nth-order n阶matrix n. 矩阵mathematical model 数学模型eigenstructure n. 特征结构eigenvalue n. 特征值eigenvector n. 特征向量block-diagram 框图transfer function 传递函数negative feedback 负反馈error signal 误差信号operator n. 算子，算符，操作符，控制器complex parameter 复数参数frequency parameter 频率参数time domain 时域denominator n. 分母open-loop transfer function 开环传递函数forward transfer function 前向传递函数transient a. 暂态的，瞬态的，短暂的steady-state error 稳态误差controllability n. 可控性observability n. 可观性linear time-invariant system 线性时不变系统polynomial n.; a. 多项式（的）response n. 响应，答复，应答driving a. 驱动的real part 实部inverse transform 反变换pole n. 极，极点necessary condition 必要条件sufficient condition 充分条件imaginary axis 虚轴s plane s平面triangular a. 三角的conjugate n. 共轭值；a. 共轭的，共轭根的quadruplet n. 四件一套，四个一组numerator n. 分子performance n. 性能frequency response 频率响应passband n. 通带，频带dynamic performance 动态性能robust a. 强壮的，强健的，健全的，鲁棒的，坚固的performance index 性能指标modern control theory 现代控制理论synthesis n. 综合，合成Fourier transform 傅立叶变换，傅氏变换inverse Fourier transform 傅氏反变换definite integral 定积分analytical a. 解析的，分析的，分解的qualitatively ad. 定性地logarithmic a. 对数的rectangular coordinates 直角坐标logarithmic coordinates 对数坐标Bode plots 波特图phase angle 相角polar coordinates 极坐标Nyquist plots 奈奎斯特图dissipation n. 消耗energy-storage element 储能元件spurious a. 寄生的，杂散的，乱真的attenuate v. 衰减，减少，削弱semilog n. 半对数logarithm n. 对数asymptotic a. 渐近的decibel n. 分贝radian n. 弧度octave n. 八度，倍频程（八度）。
电气工程及其自动化专业英语翻译（精选多篇）
电气工程及其自动化专业英语翻译（精选多篇）第一篇：电气工程及其自动化专业英语翻译Electric Power Systems.The modern society depends on the electricity supply more heavily than ever before.It can not be imagined what the world should be if the electricity supply were interrupted all over the world.Electric power systems(or electric energy systems), providing electricity to the modern society, have become indispensable components of the industrial world.The first complete electric power system(comprising a generator, cable, fuse, meter, and loads)was built by Thomas Edison – the historic Pearl Street Station in New York City which began operation in September 1882.This was a DC system consisting of a steam-engine-driven DC generator supplying power to 59 customers within an area roughly 1.5 km in radius.The load, which consisted entirely of incandescent lamps, was supplied at 110 V through an underground cable system..Within a few years similar systems were in operation in most large cities throughout the world.With the development of motors by Frank Sprague in 1884, motor loads were added to such systems.This was the beginning of what would develop into one of the largest industries in the world.In spite of the initial widespread use of DC systems, they were almost completely superseded by AC systems.By 1886, the limitations of DC systems were becoming increasingly apparent.They could deliver power only a short distance from generators.To keep transmission power losses(I 2 R)and voltage drops to acceptable levels, voltage levels had to be high for long-distance power transmission.Such high voltages were not acceptable for generation and consumption of power;therefore, a convenient means for voltage transformationbecame a necessity.The development of the transformer and AC transmission by L.Gaulard and JD Gibbs of Paris, France, led to AC electric power systems.In 1889, the first AC transmission line in North America was put into operation in Oregon between Willamette Falls and Portland.It was a single-phase line transmitting power at 4,000 V over a distance of 21 km.With the development of polyphase systems by Nikola Tesla, the AC system became even more attractive.By 1888, Tesla held several patents on AC motors, generators, transformers, and transmission systems.Westinghouse bought the patents to these early inventions, and they formed the basis of the present-day AC systems.In the 1890s, there was considerable controversy over whether the electric utility industry should be standardized on DC or AC.By the turn of the century, the AC system had won out over the DC system for the following reasons:（1）Voltage levels can be easily transformed in AC systems, thusproviding the flexibility for use of different voltages for generation, transmission, and consumption.（2）AC generators are much simpler than DC generators.（3）AC motors are much simpler and cheaper than DC motors.The first three-phase line in North America went into operation in 1893——a 2,300 V, 12 km line in southern California.In the early period of AC power transmission, frequency was not standardized.This poses a problem for interconnection.Eventually 60 Hz was adopted as standard in North America, although 50 Hz was used in many other countries.The increasing need for transmitting large amounts of power over longer distance created an incentive to use progressively high voltage levels.To avoid the proliferation of anunlimited number of voltages, the industry has standardized voltage levels.In USA, the standards are 115, 138, 161, and 230 kV for the high voltage(HV)class, and 345, 500 and 765 kV for the extra-high voltage(EHV)class.In China, the voltage levels in use are 10, 35, 110 for HV class, and 220, 330(only in Northwest China)and500 kVforEHVclass.Thefirst750kVtransmission line will be built in the near future in Northwest China.With the development of the AC/DC converting equipment, high voltage DC(HVDC)transmission systems have become more attractive and economical in special situations.The HVDC transmission can be used for transmission of large blocks of power over long distance, and providing an asynchronous link between systems where AC interconnection would be impractical because of system stability consideration or because nominal frequencies of the systems are different.The basic requirement to a power system is to provide an uninterrupted energy supply to customers with acceptable voltages and frequency.Because electricity can not be massively stored under a simple and economic way, the production and consumption of electricity must be done simultaneously.A fault or misoperation in any stages of a power system may possibly result in interruption of electricity supply to the customers.Therefore, a normal continuous operation of the power system to provide a reliable power supply to the customers is of paramount importance.Power system stability may be broadly defined as the property of a power system that enables it to remain in a state of operating equilibrium under normal operating conditions and to regain an acceptable state of equilibrium after being subjected to a disturbance..Instability in a power system may be manifested in many different ways depending on the system configurationand operating mode.Traditionally, the stability problem has been one of maintaining synchronous operation.Since power systems rely on synchronous machines for generation of electrical power, a necessary condition for satisfactory system operation is that all synchronous machines remain in synchronism or, colloquially “in step”.This asp ect of stability is influenced by the dynamics of generator rotor angles and power-angle relationships, and then referred to “ rotor angle stability ”译文：电力系统现代社会比以往任何时候更多地依赖于电力供应。
电气工程及其自动化外文翻译
The micro structure of low voltage distribution system BACKGROUND OF THE INVENTION1. Field of the InventionThis invention relates to a novel and unique low voltage distribution system to wire a miniature structure with an electrical circuit which cooperates with bi-prong electrical fastening members which function as an electrical connector to plug an electric light bulb to the electrical circuit in the miniature structure. In particular, this invention relates to an easily installed electrical wiring system using an adhesive backed conductive foil tape as the bus bar for the system. The bi-prong electrical fastening devices can be plugged into and unplugged from the bus bar strips at any desired location.2. Disclosure of the Prior ArtIt is known in the art to utilize low voltage lighting systems for miniature structures. Typically, the wiring takes the form of insulated electrical conductors extending from a voltage source, such as a battery or step-down transformer, directly to a light bulb. Each light has its own pair of conductors which extend throughout the miniature structure.It is also known to install wiring within a miniature structure in the form of a distribution circuit having a plurality of junctions or connecting points wherein conductors are electrically connected at the connecting points by a soldered connection. Addition of a lamp or relocating a lamp requires soldering or mechanically disconnecting the lamp.Other known low voltage distribution systems utilize electrical connectors having female and male components. Other systems utilize a variety of electrical conductors and connecting devices, all of which require tools or following precise installation techniques.SUMMARY OF THE INVENTIONThe novel and unique low voltage distribution system for miniature structures, such as doll houses or other model buildings, of the present invention overcomes several disadvantages of the prior art. One advantage of the present invention is that a main bus bar for the distribution system is formed by a pair of elongated bus bar strips having a conductive metal foil top layer and an adhesive bottom layer. The strips are easily installed by peeling off a removable backing member exposing the adhesive layer. The bus bar strips are affixed to the walls of the miniature structure in a parallel spaced relationship. The distance between the center line of the strips is selected to be a predetermined distance. The predetermined distance is at least equal to the transverse width or geometrical dimension of the strips. Bi-prong electrical fastening devices having two sharp points are pushed into the bus bar, pierce and pass through the parallel strips, forming an electrical connection with the strips. The points engage the wall of the miniature structure and are held in place. A light bulb is connected by wires across the bi-prong plug.Another advantage is that the bus bar strips are easily formed into 90° angles or other angles by folding the strips to obtain the desired angle. Prior art devices require staples or adhesive holding devices to hold insulating wires. Depending on thedistribution system of the prior art devices, an electrical connection requires tools, soldering or some method of insuring a dependable mechanical and electrical connection.Another advantage of the present invention is that the bi-prong electrical fastening device is easily installed by pushing the device into the miniature structure wall in the same manner as a tack of similar device. If it is desired to remove or relocate a lamp, the bi-prong plug is easily pulled out and reinserted.Yet another advantage of the present invention is that branch bus bar circuits can be fabricated by folding the end against itself forming a mating terminal. The mating terminal is placed into contact at any desired location on the main bus bar to form sub-distribution circuits.A yet further advantage of the present invention is that a lamp can be attached to a bi-prong plug by winding wires together and forming a tight insulating seal therearound by use of a heat-shrinkable tube or cylinder.BRIEF DESCRIPTION OF THE DRAWINGThe foregoing and other advantages and features of the invention will be apparent from the following description of the preferred embodiment of the invention when considered together with the illustrations in the accompanying drawings and includes the following figures:FIG. 1 is a schematic diagram showing the low voltage distribution system having bi-prong plugs and lamp connected thereto;FIG. 2 is a perspective view of a contacting mating connection between a main bus bar and a branch bus bar;FIG. 3 is a pictorial representation of a doll house having a pair of spaced parallel elongated strips as the main bus bar and branch bus bar;FIG. 4 is a diagrammatic representation of a section of bus bar having a bi-prong electrical fastening device inserted therein;FIG. 5 is a section taken along section lines 5-5 of FIG. 4;FIGS. 6, 7 and 8 are an end, front and top view of a bi-prong electrical fastening device having a circular cross-section;FIGS. 9, 10 and 11 are an end, front and top view of a bi-prong electrical fastening device having a rectangular cross-section;FIG. 12 is a pictorial illustration of twisting an end of a conductor from a bi-prong electrical fastening device with the end of a conductor from a light bulb having a heat shrinkable tube strung on the conductors; andFIG. 13 is a wire lamp and bi-prong electrical fastening device with the heat-shrinkable sealing tube being shrunk to form a tight insulating seal around the twisted electrical connection illustrated in FIG. 12.DESCRIPTION OF THE PREFERRED EMBODIMENTThe schematic diagram of FIG. 1 includes a means for producing a low voltage signal such as, for example, a step down transformer 20. In the preferred embodiment, a primary winding 22 of transformer 20 is electrically connected across a 120 volt 60 hertz source. A secondary winding 24 produces a low voltage, 60 hertz signal thereacross such as 12 volts A.C. The low voltage source could be a direct currentsource such as batteries.The transformer 20 may include a detecting and limiting device 28 to detect and limit the current flow through the secondary winding 24. If the transformer becomes overloaded due to high current flow, the device 28 opens. A thermal cutout may be used as one such device. The transformer may be a 120/12 volt 60 hertz U.L. approved Class 2 transformer.A main bus bar, shown generally as 30, is electrically connected to the secondary winding 24 by electrical conductors 32.A branch bus bar, shown generally as 36, is attached or connected to the main bus bar30 through a pair of mating contacts shown as 40 and 42.Bi-prong electrical fastening devices shown as 50 are inserted into the bus bar to make electrical contact. Each bi-prong plug 50 has a lamp 52 connected thereto. The connections are made through sealed electrical connectors 54.FIG. 2 illustrates the main bus bar 30 is formed of two spaced parallel strips 56 and 58 each having a conductive metal foil top layer 60 and an adhesive bottom layer 62. The width of the strip is of a selected geometrical dimension. The bus bar's two elongated strips 56 and 58 are spaced with the center lines 64 and 66, respectively, spaced a predetermined distance. The predetermined distance, in the preferred embodiment, is at least equal to the width of strips 56 and 58.A branch bus bar having two elongated strips 70 and 72, which is of the same material and construction as strips 56 and 58, has the one end thereof folded back upon itself with the adhesive layer of the folded end in contact with and adhering to the adhesive layer of the unfolded bus bar strip to form coplanar mating contacts 74 and 76. The coplanar mating contacts 74 and 76 are in mating electrical contact with the conductive metal top foil 60. Pieces of adhesive tape 80 are affixed to mating contacts 74 and 76, and a piece of adhesive tape 82 is located between strips 56 and 72. A section of the miniature structure is shown as 86.FIG. 3 shows a miniature structure 90 having a main bus bar 92 and a branch bus bar 94. The mating connection is shown as 96. Several right angle turns in the bus bar are shown by 100. A typical wiring pattern extends through three stories.FIG. 4 shows a top view of a section 104 of the miniature structure having bus bar strips 56 and 58 adhered thereto. The strips 56 and 58 originally and a protective backing which was removed exposing the adhesive. A bi-prong electrical connecting 50 device has conductive fastening members 120 (shown in FIGS. 5 through 8) terminating in an output terminal 108. A pair of insulated electrical conductors 110 is attached to output terminal 108.An end sectional view of the bus bar strips 56 and 58 and bi-prong electrical connecting device 50 in FIG. 5 shows that the conductive fastening members 120 terminate in a tapered cutting edge or point 122 adapted to pierce and be driven through the bus bar forming an electrical connection therewith and into fastening engagement with a selected portion 104 of the miniature structure.The conductive fastening members 120 are spaced a predetermined distance apart and are parallel to each other. Each conductive fastening member 120 terminates in an output terminal 108 having conductors 110 soldered thereto. The housing or body 124of the bi-prong plug 50 is formed of insulating, cured epoxy well known in the art. FIGS. 6, 7 and 8 show a bi-prong electrical fastening member having a circular cross-section. The elements are shown in solid line with the body 124 shown in dashed line.FIGS. 9, 10 and 11 show a bi-prong electrical fastening member having a rectangular cross-section. The elements are shown in solid line with the body 124 shown in dashed line.FIG. 12 shows an electrical conductor 110 with a conductive end section 126 exposed and twisted together with the end of a conducting lead 128 from a lamp or light bulb 52. A heat-shrinkable tube or cylinder 130 is positioned around each joined connection of the conducting lead 128 and electrical conductor 110. The tube 130 has an axial length sufficient to encapsulate and form a tight, insulating fitting around the connection. FIG. 13 shows the tube 130 and wiring being exposed to a heat source 142 of the right temperature to cause the desired shrinkage.The system disclosed herein can be assembled into a lighting kit for use in a doll house or for other miniature structures such as that used with model trains, model cities and other hobby type structures. In the preferred embodiment, the kit comprises a transformer, copper tape with an adhesive backing, light bulbs, wires, spring clamps (used as connecting means 32 in FIG. 1) and heat shrinkable tubing.The connections for providing a 12 volt electrical signal from the two copper tapes and into a lamp or fixture in the structure is obtained by attaching one of the bi-prong plugs to the bulbs or lamps. The two prongs of the plug are pointed and are pressed into and through the copper tapes in a manner similar to insertion and removal of a two-prong fastener.Installation of the distribution system is fairly simple and can be done without use of tools or soldering equipment. This is of significance in the model or hobby market.It is also envisioned that the connecting means in FIG. 1 may well be a bi-prong electrical connecting device wherein the electrical conductors are connected to the output of the transformer.What is claimed is:1. A low voltage distribution system for a miniature structure comprisingmeans for producing a low voltage signal;a main bus bar formed of a conductive metal foil top layer and an adhesive bottom layer, said conductive metal foil having a pair of elongated bus bar strips each having a selected geometrical dimension across the width thereof, said strips being positioned in spaced parallel relationship wherein the spacing between the parallel center lines of each elongated bus bar strip is of a predetermined distance which is at least equal to said geometrical dimension and said adhesive layer being adapted to attach the main bus bar to a selected portion of a miniature structure with the conductive metal foil exposed;means for connecting the low voltage signal to the conductive metal foil layer and producing a voltage potential across said strips; andat least one bi-prong removable electrical fastening device formed of a pair of spacedconductive fastening members each of which are electrically connected to an output terminal, each of said fastening members terminating in an elongated tapered cutting edge, said tapered cutting edges being in spaced parallel relationship and having a dimension therebetween substantially equal to said predetermined distance, and which, when urged into fastening engagement with a said miniature structure, are adapted to pierce, form an elongated slit in and parallel to the center line of each bus bar and be driven through each of the bus bar strips of the main bus bar forming an electrical connection therewith and into fastening engagement with said selected portion of a said miniature structure located under the adhesive layer, and being adapted to terminate said electrical connection with each of the bus bar strips upon removal of the fastening member from fastening engagement with said selected portion of a miniature structure by slideably withdrawing the tapered edges from each bus bar strip leaving a slight elongated slit therein while enabling the strips to maintain a voltage potential thereacross independent of the elongated slit.2. The system of claim 1 wherein the means for producing a low voltage signal comprises a step down alternating current transformer.3. The system of claim 2 wherein the low voltage signal producing means includes means for detecting and limiting the current flow through the step down transformer.4. The system of claim 3 wherein the low voltage signal connecting means includesa pair of transformer leads; anda pair of spring clips electrically connected to the transformer leads and to the main bus bar.5. The system of claim 1 whereinsaid bi-prong electrical fastening device includes a pair of separate output terminals electrically connected to said spaced fastening members and having a geometrical distance therebetween which is substantially equal to said predetermined distance.6. The system of claim 5 further comprisinga second bi-prong electrical fastening device identical to said at least one bi-prong electrical fastening device and adapted to pierce and be driven through a different section of the main bus bar forming an electrical connection therewith and into fastening engagement with a selected section of a miniature structure.7. The system of claim 5 further comprisinga branch bus bar having a pair of elongated bus bar strips having a geometrical dimension across the width thereof which is substantially equal to said selected geometrical dimension, a conductive metal foil top layer and an adhesive bottom layer, said branch bus bar strips being positioned in a spaced parallel relationship wherein the spacing between the parallel center lines thereof is substantially equal to said predetermined distance, said branch bus bar strips each having one end thereof folded back upon itself with the adhesive layer of the folded end in contact with and adhering to the adhesive layer of the unfolded bus bar strip to form a coplanar mating contact with the conductive metal foil layer being located on the outer surface of the folded end, one of said mating contacts at the end of each bus bar strip being positioned in mating electrical contact with the conductive metal foil top layer of the main bus bar; anda second removable bi-prong electrical fastening device formed of a pair of spaced conductive fastening members electrically connected to an output terminal, each of said spaced conductive fastening members being electrically connected to a separate output terminal and each of which terminate in an elongated tapered cutting edge, said tapered cutting edges being in spaced parallel relationship and having a dimension therebetween substantially equal to said predetermined distance and which, when urged into fastening engagement with a said miniature structure, are adapted to pierce, form an elongated slit in and parallel to the center line of each branch bus bar strip and be driven through the elongated strips of the branch bus bar forming an electrical connection therewith and into fastening engagement with a section of a said miniature structure located under the adhesive layer, and being adapted to terminate said electrical connection from each of the branch bus bar strips upon removal of the second fastening device conductive fastening member from fastening engagement with said selected portion of a miniature structure by slideably withdrawing the tapered edges from each branch bus bar strip leaving a slight elongated slit therein while enabling the strip to maintain a voltage potential thereacross independent of the elongated slit.8. The system of claim 7 further comprisinga third bi-prong electrical fastening device identical to said second bi-prong electrical fastening device and adapted to pierce and be driven through the branch bus bar forming an electrical connection therewith and into fastening engagement with a selected section of a said miniature structure.9. The system of claim 3 further comprisinga pair of insulated electrical conductors wherein each conductor has one end thereof electrically attached to an output terminal and the other end of the conductor terminating with the conductive end section thereof exposed; anda light bulb capable of being illuminated by the low voltage signal, said light bulb having a pair of conducting leads extending therefrom with each end thereof electrically connected to one of the exposed conductor end sections forming an electrical circuit therewith.10. The system of claim 9 further comprisinga heat-shrinkable cylinder positioned around each joined connection of the conducting lead and electrical conductor, said cylinder having an axial length sufficient to encapsulate and form a tight insulating fitting around said electrical connection.11. A low voltage distribution system for wiring a miniature structure for electricity comprisinga step down voltage transformer adapted to be electrically connected to an alternating current voltage source having a voltage level higher than the desired distribution voltage level for producing a low voltage signal at the level desired for the distribution voltage;a first and second elongated bus bar strip, each having a selected geometrical dimension across the width thereof and formed of a conductive metal foil top layer and a bottom adhesive layer, said bus bar strips being affixed to a selected section of a said miniature structure and positioned in a spaced parallel relationship with apredetermined distance between the center lines of each strip being at least equal to said selected geometrical dimension;a pair of electrical connectors extending from the transformer to the bus bar strips for applying the low voltage signal across said bus bar strips having a plurality of bi-prong removable electrical fastening members terminating in a pair of spaced parallel elongated tapered cutting edges having a dimension therebetween substantially equal to said predetermined distance and which, when urged into fastening engagement with said miniature structure, is adapted to pierce, form an elongated slit in and parallel to the center line of each bus bar and be driven into and through the bus bar strips forming a plurality of parallel electrical connections therewith and into fastening engagement with a different selected section of a said miniature structure, each of which are located opposite the fastening member and under the bus bar strips and which is adapted to terminate said electrical connection with each of the bus bar strips upon removal of the fastening member from fastening engagement with said selected portion of a miniature structure by slideably withdrawing from each bus bar strip leaving a slight elongated slit therein while enabling the strips to maintain a voltage potential thereacross independent of the elongated slit; anda plurality of light bulbs each of which has a pair of conducting leads which are electrically connected across one of said bi-prong electrical fastening members, said light bulbs each being in parallel circuit connection to each other and being responsive to the low voltage signal applied across the bus bar to become illuminated.12. The system of claim 11 wherein the bi-prong electrical fastening member has a round cross-section.13. The system of claim 12 wherein the bi-prong electrical fastening member has a rectangular cross-section.14. A miniature structure low voltage distribution system having a main bus bar formed of a conductive metal foil layer which is affixed to the miniature structure by an adhesive bottom layer, said main bus bar having a pair of spaced parallel elongated bus bar strips each having a selected geometrical dimension across the width thereof and with the spacing between the center lines of the parallel strips being a predetermined distance, said distribution system comprisingat least one bi-prong removable electrical fastening device formed of a pair of spaced conductive fastening members each of which are electrically connected to an output terminal, each of said fastening members terminating in an elongated tapered cutting edge, said tapered cutting edges being in spaced parallel relationship and having a dimension therebetween substantially equal to said predetermined distance, and which, when urged into fastening engagement with a said miniature structure, are adapted to pierce, form an elongated slit in and parallel to the center line of each bus bar and be driven through each of the bus bar strips of the main bus bar forming an electrical connection therewith and into fastening engagement with said selected portion of a said miniature structure located under the adhesive layer, and being adapted to terminate said electrical connection with each of the bus bar strips upon removal of the fastening member from fastening engagement with said selected portion of aminiature structure by slideably withdrawing the tapered edges from each bus bar strip leaving a slight elongated slit therein while enabling the strips to maintain a voltage potential thereacross independent of the elongated slit.微型结构低压分配系统1.发明背景此项发明涉及到一项独特的低压分配系统，此系统为一个有着电子线路的微型结构，它包含着电力加速构件，其中的电子连接器使一个电灯泡安插在这个微型结构中。
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中文5300字毕业设计（论文）外文翻译Electrochemical detection methods in capillary electrophoresis and applications to inorganic species 毛细管电泳电化学检测方法在无机元素中的应用出处：Journal of Chromatography A, 1999, 834(1): 89-101电化学检测法在毛细管电泳和无机元素中的应用Thomas Kappes, Peter C. Hauser摘要：本文论述了毛细管电泳的三种电化学检测即电导检测法、安培检测法和电位检测法，并与较常见的光学检测方法进行了比较。
详细介绍了三种检测方法的原理及其实现方法，同时介绍了它们在无机元素分析物中的应用情况。
关键字：电化学检测、毛细管电泳；无机阴离子、金属阳离子。
目录：1.简介--------------------------------------------------------------12.电导检测法--------------------------------------------------------2 2.1原理----------------------------------------------------------2 2.2实现方法------------------------------------------------------3 3安培检测法--------------------------------------------------------63.1原理----------------------------------------------------------6 3.2实现方法------------------------------------------------------6 4电位检测法--------------------------------------------------------54.1原理----------------------------------------------------------9 4.2实现方法------------------------------------------------------9 5在无机元素中的应用------------------------------------------------9 6总结-------------------------------------------------------------10 7参考文献---------------------------------------------------------101．简介毛细管电泳的检测方法通常采用光学方法（激光诱导荧光检测法），而毛细管电泳的三种电化学检测法即电导测定法、安培检测法、和电位测定法是非常有吸引力的一种替代方法，尽管目前开发的还相对较少。
相对套色板离子法来说（其他和以前一般化的检测方法）他主要借助于电导性能而不是运用光学方法。
由与针对毛细管中更小体积细胞的光学检测变得更加困难，而且事实上许多离子也不能直接由光学方法直接检测到，或许当人们意识到这些的时候会感到很惊讶。
关于这一情况或许有两种解释。
首先由于高性能流体套色板的广泛应用，我们在毛细管电泳中通常采用光学吸收检测法，许多毛细管电泳仪器制造商似乎已经走上这一路线并且将其纳入他们已有的毛细管电泳仪器检测中去了。
其次应由于可分离的高电压与电化学检测有着本质的矛盾，在以前，通常借助于精密的设计来克服这一问题，但在最近几年，通过设计正确的系统，这不再成为问题。
三种不同的电化学检测方法有一个共同的本质上的特点，那就是比光学检测要简单的多。
我们可以直接得到电信号而不用借助于中间参数（例如光学检测法中的辐射强度）。
检测器仅仅包含三个或更少的小电极和一些非常简单的电路，而光学检测法需要有光源、单色光镜、光学检测器和光学聚焦。
在光学检测法中，细胞的体积大小直接影响到光信号的传播路径，也正是因为此，需要求毛细管的直径应尽可能的大。
而对于电化学检测法，细胞的体积大小仅仅影响电导率的测量。
在安培检测法中，影响信号的只是电极的位置，而细胞的大小则限制在可应用的样品体积内；在电位检测法中，信号与传感器的大小、细胞的体积和毛细管的直径完全无关。
但是另一方面，在光学检测法中，我们可以在应用于毛细管的可分离电压中设计完全绝缘而不受可分离电压干扰的光电隔离检测器。
电导检测法可以被认为是大众化的方法，而安培检测法则受到电活化离子的限制，电位检测法对于一些变化多样的小离子来说则无能为力。
安培检测法有非常低的检测限，而光学检测法的吸收性和荧光性的测量也受到表现出不同属性的离子的限制。
由于这个原因，我们经常用间接的光学方法取代直接对分析物的检测而进行辅助检测（强制来获得整体的中性电荷）。
当分析物不能被直接检测到的时候，这一方法也可应用于电化学检测法中。
利用分析物的化学衍生物检测也是一个可行的做法。
但这些方法都不太理想，因为间接检测只被限制在一个很小的范围内而衍生物又使测量过程更加复杂。
在实际应用中，对检测方法的选择首先要利用被检测物的内在特性作为直接检测对象，然后还要立足于其可实现性和要求检测的上下限。
而当检测几个不同元素且又不可能具有同样的检测属性时，必须要找到一种折衷的方法。
2.电导检测法2.1原理在此方法中运用溶液中离子电荷的导电能力，当施加电压时会在两个电极之间产生电流，并根据欧姆定律测量出低阻抗或电解溶液的导电率。
为了防止电极周围产生氧化还原反应，通常使用频率为1KHZ的交流电。
如果使用更高赫兹的交流电，可能会产生与溶液无关的电极从而与样品以外的细胞产生联系。
[16]溶液的电导率（L）与电极的面积（A）、它们之间的距离（I）、电荷的积聚度（C）以及它们在电场中的迁移率有关，根据等式（1）：A∑λ（1）L= c i iI离子的流动性与它们的大小（水合离子的半径）和电荷数量的多少有关，顺便值得一提的是，对于电泳分离的离子也有与此下相同的性质。
因此电导检测法不具有可选性，是一种单机方法，这就对样品组成的大体环境有了一定的限制。
所有离子在电压下都会有相应反应，而这恰恰是分离离子检测法所需要的，也正因为这一原因，电导检测法被广范的应用于离子套色板中。
[17]一方面这一特点使所有本底离子做出相应的反应，例如那些在离子套色板中的缓冲液或PH值的反应和在毛细管电泳中的离子强度缓冲器和分析离子中的抗衡离子的反应。
另一方面的原因是传导等式中包含了所有情况的总和，较高的电导率会降低分析物检测的限制。
因此所谓的压力检测法被广泛应用于离子套色板的方法中，这里隐藏的离子在检测前被从流体中移除。
同样值得注意的是等式中电极的面积和电极之间的距离与细胞的体积有关，因此也对测量信号有一定的影响。
2.2实现方法在以前的毛细管电泳法和等速电泳系统中，通常使用电位梯度检测法[8-11]。
这里，由于电场效应在溶液中产生的电位检测区域可以通过单电极或一对惰性电极检测。
如果电导率不同，那么在分离的毛细管中的电压降也就不一致。
由于传导率的这一特性，我们可以直接检测这一性质而不需要测量信号，这是一个很不错的方法。
但是，可以想到相对于正常的交流模式的传导率测量方法，这会导致更多的内部干扰。
或许正是因为此原因这一方法没有受到广泛的接受。
在早期的研究中，会使用的孔径来分离毛细管，电极检测器被直接安置在分离的毛细管电极终端的前面。
这可以由图一看出，为了避免检测到血管中的电压梯度，将两个电极方向相反相互垂直的安放在管道的两侧。
通过合理的设计交流检测电极，同样可以达到直流低频的效果。
在Huang etal的首篇关于现代硅土毛细管的电导检测介绍中，通过激光打孔技术在血管壁上打了两个小孔以便安放两个检测电极。
更简单的安置技术在中有相关介绍。
[14]后面的这一安置方法中，一个电极被喷墨裱好后直接放在血管的外侧，另一个电极放在一个有一定距离的缓冲容器中，如图1.B所示。
图1 电导检测法（A）:由两个检测电极（DE）线性排列，对电极独立接地的简易装置(GND)。
（B）:由单个检测电极和对电极接地构成。
这样电泳就可以通过电导率来衡量。
电导率信号可以通过放置在外侧的电极来放大，因为这样可以在相反的电极上获得较大的流体横截面，这一几何形式会直接导致外围电场的损失。
关于电化学检测的商业化设备现在已经可以进行联合制作了。
[14]10-MOL/L。
压力一般的电导检测的检测范围和注射试样相对较高，大概在5检测允许的检测范围的浓度可达710-MOL/L。
[15-18]可通过使用弱酸来移除缓冲离子或在使用离子交换剂通过隔膜来提取非离子物质，释放质子或氢氧离子。
为了使毛细管实现电泳而不增加谱带宽度，常采用一个相似体积的离子交换剂附在以分离的血管电极细胞前面，如图2所示。
为了检测更低一级，比起无压力电导检测法和使用了缓冲器的检测法，这种实现方法将会更加复杂。
图2 由化学池压力器组成的电导检测电泳的接地端在溶液受到压力器作用的容器中，可以通过测量柱体末端的对地极或系统中的两个独立电极来获得电导值。
另一种降低检测限的方法是使用样品堆栈的方法，其浓度可达1ppb。
关于低ppb的混合物的电泳图如图3所示。
但是样品堆栈仅适用于低离子强度，为获得足够精度则需进行内部标准化。
图3 使用电导检测法对标准低浓度样品的电化学图谱[14]近来一种遥控电导检测法正在引起人们的注意。
两个管状电极放置在毛细管上，在连接处检测器的体积会形成电容，所以需采用40KHZ 的交流电。
这一装置的构造非常简单并允许连接两个检测器。
这一检测方法与末端管状检测相比有一定的局限性。
3.安培检测法3.1原理安培检测法主要基于分析物在工作电极的氧化还原反应原理，因此它的使用范围不像电导检测法那样广泛，但另一方面，它却可以实现低检出限。
通常安培检测法中的电流（i ），与电极面积（A ），交换电荷数（n ），法拉第常数（F ），扩散系数（D ），扩散层浓度(δN )和待分析物浓度（c ）有关，如式（2）： δN CAnFD i -= （2）安培检测法实现的先决条件是提供的阳极或阴极电压能在分析物上产生氧化还原反应，在电极反应这一过程中溶液的浓度不能有较大的改变。
对于毛细管电泳中较小体积的细胞，不会出现这种情况但在完全电解的溶液附近则有可能发生。
这一方法通常被称为电量分析法，但两种方法又不能清楚的区分开来。
这一小部分用于氧化还原反应的分析物被称作库仑效率，高灵敏度的检测往往要求较高的库仑效率。