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电子信息专业英语翻译

电子信息专业英语翻译
电子信息专业英语翻译

Silicon microprocessors have been the heart of the computing world for more than 40 years. In that time,microprocessor manufacturers have crammed more and more electronic devices onto microprocessors. In accordance with Moore’s Law, the number of electronic devices put on a microprocessor has doubled every 18 months .Moore’s Law is named after Intel founder Gordon Moore ,who predicted in 1965 that microprocessors would double in complexity every two years. Many have predicted that Moore’s Law will soon reach its end because of the physical limitations of silicon microprocessors.

The current process used to pack more and more transistors onto a chip is called deep-ultraviolet lithography ( DUVL), which is a photography-like technique that focuses light through lenses to carve circuit patterns on silicon wafers. DUVL will begin to reach its limit around 2005,At that time, chipmakers will have to look to other technologies to cram more transistors onto silicon to create more powerful chips.Many are already looking at extreme-ultraviolet lithography(EUVL) as a way to extend the life of silicon at least until the end of the decade. EUVL uses mirrors instead of lenses to focus the light, which allows light with shorter wavelengths to accurately focus on the silicon wafer.

Beyond EUVL, researchers have been looking at alternatives to the traditional microprocessor design. Two of the more interesting emerging technologies are DNA computers and quantum computers.

DNA computers have the potential to take computing to new levels, picking up where Moore’s Law leaves off. There are several advantages to using DNA instead of silicon:

As long as there are cellular organisms, there will be a supply of DNA makes it a cheap resource.

Unlike traditional microprocessors, which are made using toxic materials, DNA biochips can be made cleanly.

DNA computers are many times smaller than today’s computers.

DNA’s key advantage is that it will make computers smaller, while at the same time increasing storage capacity,than computer that has come before. One pound of DNA has the capacity to store more information than all the electronic computers ever built. The computing power if a teardrop-sized DNA computer, using the DNA logic gates, will be more powerful than the world’s most powerful supercomputer. More than 10-trillion DNA molecules can fit into an area no larger than 1 cubic centimeter (.06 inch3). With this small amount of

DNA ,a computer would be able to hold 10 terabytes(TB) of data and perform 10-trillion calculations at a time. By adding more DNA, more calculations could be performed .

Unlike conventional computers could perform calculations simultaneously. Conventional computers operate linearly, taking on tasks one at a time. It is parallel computing that will allow DNA to solve complex mathematical problems in hours-problems that might take electrical computers hundreds of years to complete.

Today’s computers work by manipulating bits that exist in one of two states: 0 or 1. Quantum computers aren’t limited to two states; they encode information as quantum bits, or qubits. A qubit can be a 1or a 0, or it can exist in a superposition that is simultaneously 1 and 0 or somewhere in between. Qubits represent atoms that are working together to serve as computer memory and a microprocessor. Because a quantum computer can contain these multiple states simultaneously, it has the potential to be millions of times more powerful than today’s most powerful supercomputers. A 30-qubit quantum computer would equal the processing power of a conventional computer capable of running at 10 teraops, or trillions of operations per second. Today’s fastest supercomputers have achieved speeds of

about 2 teraops.

Already we are seeing powerful computers in non-desktop roles. Laptop computers and personal digital assistants(PDAs) have taken computing out of the office. Wearable computers built into our clothing and jewelry will be with us everywhere we go. Out files will follow us while out computer provides constant feedback about our environment. V oice- and handwriting-recognition software will allow us to interface with out computers without using a mouse or keyboard . Magnetic RAM and other innovations will soon provide our PC with the same instant-on accessibility that our TV and radio have.

One thing is an absolute certainty: The PC will evolve. Ti will get faster. It will have more capacity. And it will continue to be an integral part of our lives.

硅微处理器成为计算世界的中心已经超过40年。在这段时间内,微处理器制造商把更多的微处理器塞进电子设备。按照摩尔定律,每18个月微处理器的电子设备数量将增加一倍。摩尔定律是以英特尔创始人戈登摩尔命名的,戈登摩尔在1965年预言,微处理器的复杂度将每两年翻一番。许多人预测,由于微处理器芯片的物理限制摩尔定律即将结束。

目前在一枚芯片上安装更多晶体管被称为深紫外线光刻技术(DUVL),一个喜欢摄影的技术,侧重于通过镜头的光雕刻硅片的电路模式。深紫外线光刻技术将开始2005年左右达到极限,到那时,芯片制造商将不得不寻找其它的技术,使更多的晶体管刻入到硅中来制造更强大的集成电路片。许多人已经在找一种超紫外线光刻技术(EUVL)使其至少延长到21世纪末。EUVL使用镜子而不是把重点放在镜头的光线,使光线波长较短的准确把握硅晶片。

除了极紫外光刻,研究人员一直在寻找相比于传统的微处理器设计的另一种方法。更吸引人的两个新兴技术是DNA 计算机和量子计算机。

DNA计算机有可能把计算提高到新的水平,延续摩尔定律。用DNA芯片而不用硅芯片的几个好处:

只要有细胞生物,就将有DNA提供。大量的提供DNA使它变为廉价的资源。

与使用了有毒物质的传统的微处理器不同,DNA生物芯片使用的是无毒的物质。

DNA计算机比今天的计算机小许多倍

DNA的主要优点是,它将使计算机变得更小,并且同时增加以前的计算机没有过的存储容量。一英镑的DNA比有史以来的电子计算机有能力储存更多的信息。一滴水滴大小的利用DNA逻辑门的DNA计算机的计算能力,比世界上最强大

的超级计算机更加强大。超过1000万的DNA分子能够适用于一个面积不超过1立方厘米的地方(0.06 inch3)。这少量的DNA能够使电脑将保持10兆兆字节的数据(TB)并一次执行10万亿时间计算。增加更多的DNA,可完成更多的计算方法。

与传统的计算机不同,DNA计算机可以同时进行计算。传统的电脑的操作使线性的,一次只可执行一个任务。DNA计算机的并行计算,使DNA可以用几个小时解决电气电脑可能花费数百年时间才能完成的复杂的数学问题。

今天的电脑操作的工作位有两种状态:0或1。量子计算机并不限于两种状态,它们编码的量子位。一个比特可以是1或0,也可以存在于同时叠加的1和0,或介于两者之间。量子位可以描绘成为支持计算机的内存和微处理器而一起

工作的原子。因为量子计算机可以同时包含这多个状态,它有可能成为比目前最强大的超级计算机更强大数百万倍的

计算机。一个30量子位的量子计算机将等于一个传统的计算机运行10 teraops的运行能力,或每秒数万亿次运算处理能力。今天的最快的超级计算机已经达到了约2 teraops的速度。

我们已经看到功能强大的计算机在非桌面上的作用。笔记本电脑和掌上电脑(PDA)已经能够将数字计算搬出办公室。可带的电脑如同我们的服装和饰品可以到我们到的任何地

方。当我们的电脑提供对我们的环境不断的反馈使我们的文件可随身携带。语音和手写识别软件将允许我们连接计算机时无需使用鼠标或键盘。磁性RAM和其他方面的创新将提供我们电脑与电视和无线电一样及时的无障碍的连接。

有一件事是绝对肯定:电脑将进化。它将变得更快。它将有更多的能力。并且它将继续成为我们生活不可分割的一部分。

电子信息工程专业课程翻译中英文对照表

电子信息工程专业课程名称中英文翻译对照 (2009级培养计划)

实践环节翻译

高等数学Advanced Mathematics 大学物理College Physics 线性代数Linear Algebra 复变函数与积分变换Functions of Complex Variable and Integral Transforms 概率论与随机过程Probability and Random Process 物理实验Experiments of College Physics 数理方程Equations of Mathematical Physics 电子信息工程概论Introduction to Electronic and Information Engineering 计算机应用基础Fundamentals of Computer Application 电路原理Principles of Circuit 模拟电子技术基础Fundamentals of Analog Electronics 数字电子技术基础Fundamentals of Digital Electronics C语言程序设计The C Programming Language 信息论基础Fundamentals of Information Theory 信号与线性系统Signals and Linear Systems 微机原理与接口技术Microcomputer Principles and Interface Technology 马克思主义基本原理Fundamentals of Marxism 毛泽东思想、邓小平理论 和“三个代表”重要思想 概论 Thoughts of Mao and Deng 中国近现代史纲要Modern Chinese History 思想道德修养与法律基 础 Moral Education & Law Basis 形势与政策Situation and Policy 英语College English 体育Physical Education 当代世界经济与政治Modern Global Economy and Politics 卫生健康教育Health Education 心理健康知识讲座Psychological Health Knowledge Lecture 公共艺术课程Public Arts 文献检索Literature Retrieval 军事理论Military Theory 普通话语音常识及训练Mandarin Knowledge and Training 大学生职业生涯策划 (就业指导) Career Planning (Guidance of Employment ) 专题学术讲座Optional Course Lecture 科技文献写作Sci-tech Document Writing 高频电子线路High-Frequency Electronic Circuits 通信原理Communications Theory 数字信号处理Digital Signal Processing 计算机网络Computer Networks 电磁场与微波技术Electromagnetic Field and Microwave

电子信息类专业英语翻译

1.This electron beam sweeps across each line at a uniform rate,then flies back to scan another line directly below the previous one and so on,until the horizontal lines into which it is desired to break or split the picture have been scanned in the desired sequence. 电子束以均匀的速率扫描每一行,然后飞速返回去扫描下一行,直到把被扫描的图像按所希望的顺序分割成行。 2.The technical possibilities could well exist,therefore,of nation-wide integrated transmission network of high capacity,controlled by computers,interconnected globally by satellite and submarine cable,providing speedy and reliable communications throughout the word 因此,在技术上完全可能实现全国性的集成发送网络。这种网络容量大,由计算机控制,并能通过卫星和海底电缆实现全球互联,提供世界范围的高速、可靠的通信。 3.Transit time is the primary factor which limits the ability of a transistor to operate at high frequency. 渡越时间是限制晶体管高频工作能力的主要因素 4.The intensity of sound is inversely proportional to the square of the distance measured from the source of the sound. 声强与到声源的距离的平方成反比。 5.The attenuation of the filter is nearly constant to within 0.5 dB over the entire frequency band. 该滤波器的衰减近于恒定, 整个频带内的变化在0.5 dB以内。 6.At present, the state of most semiconductor device technology is such that the device design and process technology must be supplemented by screening and inspection procedures, if ultimate device reliability is to be obtained and controlled. 目前, 大多数半导体器件的技术尚未十分完善, 以至若要获得并控制器件最终的可靠性, 就必须辅以筛选和检验, 以弥补设计和工艺技术之不足 7.Bandwidth of transistor amplifiers vary from about 250 MHz in the L band to 1000 MHz in the X band. 晶体管放大器的带宽在L波段约为250 MHz, 在X波段为1000 MHz。 8.The output of the differential amplifier is fed to the circuit’s output stage via an offset-compensation network, which causes the op-amp’s output to center at zero volts. The output stage takes the form of a complementary emitter follower, and provides a low-impedance output. 差动放大级的输出通过一个失调补偿网络与输出级相连, 目的是使运放的输出以0 V为中心。输出级采用互补的射极跟随器的形式以使输出阻抗很低 9.Because of the very high open-loop voltage gain of the op-amp, the output is driven into positive saturation (close to +V) when the sample voltage goes slightly above the reference voltage, and driven into negative saturation (close to-V) when the sample voltage goes slightly below the reference voltage. 由于运放的开环电压增益很高, 当取样电压略高于参考电压时, 输出趋向于正向饱和状态(接近+V)。当取样电压低于参考电压时, 输出趋向于负向饱和状态(接近-V)。 10.If the signal source were direct connected instead of capacitor coupled, there would be a low resistance path from the base to the negative supply line, and this would affect the circuit bias conditions. 如果信号源和电路不是用电容耦合而是直接相连,从基极到负电源线就会一个低阻通路,并且这将影响到电路偏置状态 11.The differential amplifier has a high-impedance (constant-current)“tail”to give it a high input impedance and a high degree of common-mode signal rejection. It also has a high-impedance collector (or drain) load, to give it a large amount of signal-voltage gain (typically about 100 dB). 差动放大极有一个高阻抗的“尾巴”(恒流源)以提供高输入阻抗和对共模信号的深度抑制,同时,它还具有一个高阻抗和集电极或漏极负载以提供高的信号电压增益(典型的数据是100dB). 12.On the other hand, a DC negative-logic system, as in Figure 3.6(b), is one which designates the more negative voltage state of the bit as the 1 level and the more positive as the 0 level. 另一方面, 如图3.6(b)所示, 把比特的较低的电压状态记为1电平, 较高的电压状态记为0电平, 这样的系统称为直流负逻辑系统。 13.For example, to represent the 10 numerals (0, 1, 2, …, 9) and the 26 letters of the English alphabet would require 36

电子技术英文自我介绍带翻译

电子技术英文自我介绍带翻译 I am 26 years old,born in shandong province . I was graduated from qingdao university. my major is electronic.and i got my bachelor degree after my graduation in the year of 2003. I spend most of my time on study,i have passed CET4/6 . and i have acquired basic knowledge of my major during my school time. In July 2003, I begin work for a small private company as a technical support engineer in QingDao city.Because I'm capable of more responsibilities, so I decided to change my job. And in August 2004,I left QingDao to BeiJing and worked for a foreign enterprise as a automation software test engineer.Because I want to change my working environment, I'd like to find a job which is more challenging. Morover Motorola is a global company, so I feel I can gain the most from working in this kind of company ennvironment. That is the reason why I come here to compete for this position. I think I'm a good team player and I'm a person of great honesty to others. Also I am able to work under great pressure. 我26岁,出生在山东省。 我毕业于青岛大学。我的专业是电子。我毕业后,我得到了我的学士学位在2003年。

电子信息与通信工程专业英语王立琦版课文翻译

Resistor A resistor is a two-term inal electro nic comp onent that opposes an electric curre nt by produc ing a voltage drop betwee n its termi nals in proport ion to the curre nt, that is ,in accorda nee with Ohm ' s law :V=IR .The electrical resistance R is equal to the voltage drop V across the resistor divided by the current I through the resistor. Resistors are used as part of electrical networks and electronic circuits. 电阻器是一个二端口电子元件,电阻是阻止电流流动,通过按比例产生其端子之间的电压降的电流,也就是 说,根据欧姆定律:V = IR。电阻R等于电压降V除以通过电阻的电流I。电阻作为电子网络和电子电路的一部分。 Tran sistor In electro nics, a tran sistor is a semic on ductor device commo nly used to amplify or switch electro nic sig nals . A tran sistor is made of a solid piece of a semic on ductor material , with at least three term in als for connection to an exter nal circuit. A voltage or curre nt applied to one pair of the tran sistor ' s term in als cha nges the curre nt flow ing through ano ther pair of term in als. Because the con trolled curre nt can be much larger tha n the con trolli ng curre nt, the tran sistor provides amplificati on of a sig nal. The tran sistor is the fun dame ntal buildi ng block of moder n electro nic devices, and is used in radio, telepho ne, computer and other electr onic systems. Some tran sistors are packaged in dividually but most are found in in tegrated circuits. 在电子技术中,晶体管是一种,常用来放大或进行开关控制电子信号的半导体器。晶体管是 由一块固体半导体材料制成的,且至少有三个终端与外部电路连接。电压或电流适用于一双 晶体管的终端改变目前流经的另一对终端。因为受控电流可以远大于控制电流,晶体管提供 信号的放大。晶体管是构建现代电子设备的基本单元,并在收音机,电话,计算机和其它电子系统被使用。一些晶体管被单独包装,但大多数都在集成电路中。 Tran sformer A transformer is a device that transfers electrical energy from one circuit to anther through in ductively coupled electrical con ductors . A cha nging curre nt in the first circuit creates a cha nging magn etic field; in turn, this magn etic field in duces a cha nging voltage in the sec ond circuit. By add ing a load to the sec on dary circuit, one can make curre nt flow in the tran sformer, thus tran sferri ng en ergy from one circuit to the other. 变压器是一种通过感应耦合将电能从一个电路传输到另一个电路的装置。在第一电路中的一 个变化的电流创建一个不断变化的磁场;反过来,这个磁场诱导第二个电路中的电压变化。 通过向二次回路中增加负载,使电流在变压器中流动,从而将能量从一个电路传递到另一个 电路中。 Relay A relay is an electrical switch that ope ns and closes un der the con trol of ano ther electrical circuit . In the origi nal form ,the switch is operated by an electromag net to ope n or close one or many sets of con tacts. It was inven ted by Joseph Henry in 1835. Because a relay is able to con trol an output circuit of higher power tha n the in put circuit ,it can be con sidered to be, in a broad sen se, a form of an electrical amplifier. 继电器是一种电子开关,控制另一个电路的打开和关闭。在原始形式中,该开关是由一个电磁铁操作,打开或关闭一个或多个触点。它是由约瑟夫亨利在1835年发明的。由于继电器 能够控制比输入电路功率更高的输出电路,广义上说,它可以被认为是电子放大器的一种形 式。 Types of circuits In any circuit where the on ly oppositi on to the flow of electr ons is resista nee , there is a defi nite relati on

电子专业中英文翻译

基于单片机控制的光收发器设计 1 引言 在“三网合一”的推动下,光纤到户等光纤接入方案的应用日益广泛。在光进铜退的呼声下,光网络迅速发展。光收发器在光通信中起到光电、电光转换的作用,是光通信必不可少的器件。由于涉及到高速电路设计、精密机械加工和光学设计,光收发器的成本占据了光纤通信系统和的重要部分,而较高的光收发器价格成了制约光纤接入推广的瓶颈。进一步降低光收发器的成本将有利于光接入的应用推广,加快光进铜退的步伐。 光收发器主要由电路部分、光发送组件和光接收组件组成。其中电路部分又包括激光驱动、光接收信号放大和控制部分。目前市场上的光收发器的电路部分使用的是三个专用芯片。一直有公司在研究把激光驱动和接收信号放大电路集成在一个器件上,控制器使用普通的嵌入式处理器的方案。由于只使用一个专用芯片和一个通用芯片,这样就可以大幅降低电路部分的成本。PHYWORKS 公司研制的PHY1076芯片就是一款这样的芯片。它主要针对1.25Gbps到2.5Gbps的光收发器,具有外围电路简单,控制电路只需要普通的8位单片机就可以实现的特点。本文主要研究了PHY1076 的性能,选择了ATMEL 公司的ATMEGA88 单片机进行控制,设计出光收发器样品,并进行了性能测试,最终成功设计了1.25G 光收发器。 2光收发器设计方案及工作原理讨论 光收发器在发展的过程中,有许多种不同的外形封装。SFP(小型化可热插拔光收发一体模块)是目前在5Gbps以下速率中最先进的一种封装形式,具有小型化、可热插拔、功耗小、系统可集成度高以及能够进行数字诊断功能等特点。 本设计中使用激光驱动电路和光接收放大电路集成的PHY1076 作为专用芯片,使用ATMEL 的AVR 单片机ATMEGA88 进行控制和实现DDM功能,加上相应的TOSA(光发射组件),ROSA(光接收组件)和结构件,设计了一款工作在1.25Gbps传输距离为10km 的SFP 光收发器。系统方框图如图1所示:

电子技术专业英语翻译

基本电路 包括电路模型的元素被称为理想的电路元件。一个理想的电路元件是一个实际的电气元件的数学模型,就像一个电池或一个灯泡。重要的是为理想电路元件在电路模型用来表示实际的电气元件的行为可接受程度的准确性。电路分析,本单位的重点,这些工具,然后应用电路。电路分析基础上的数学方法,是用来预测行为的电路模型和其理想的电路元件。一个所期望的行为之间的比较,从设计规范,和预测的行为,形成电路分析,可能会导致电路模型的改进和理想的电路元件。一旦期望和预测的行为是一致的,可以构建物理原型。 物理原型是一个实际的电气系统,修建从实际电器元件。测量技术是用来确定实际的物理系统,定量的行为。实际的行为相比,从设计规范的行为,从电路分析预测的行为。比较可能会导致在物理样机,电路模型,或两者的改进。最终,这个反复的过程,模型,组件和系统的不断完善,可能会产生较准确地符合设计规范的设计,从而满足需要。 从这样的描述,它是明确的,在设计过程中,电路分析中起着一个非常重要的作用。由于电路分析应用电路模型,执业的工程师尝试使用成熟的电路模型,使设计满足在第一次迭代的设计规范。在这个单元,我们使用20至100年已测试通过机型,你可以认为他们是成熟的。能力模型与实际电力系统理想的电路元件,使电路理论的工程师非常有用的。 说理想电路元件的互连可用于定量预测系统的行为,意味着我们可以用数学方程描述的互连。对于数学方程是有用的,我们必须写他们在衡量的数量方面。在电路的情况下,这些数量是电压和电流。电路分析的研究,包括了解其电压和电流和理解上的电压施加的限制,目前互连的理想元素的每一个理想的电路元件的行为电路分析基础上的电压和电流的变量。电压是每单位电荷,电荷分离所造成的断电和SI单位伏V = DW / DQ。电流是电荷的流动速度和具有的安培SI单位(I= DQ/ DT)。理想的基本电路元件是两个终端组成部分,不能细分,也可以在其终端电压和电流的数学描述。被动签署公约涉及元素,当电流通过元素的参考方向是整个元素的参考电压降的方向端子的电压和电流的表达式使用一个积极的迹象。 功率是单位时间内的能量和平等的端电压和电流的乘积;瓦SI单位。权力的代数符号解释如下: 如果P> 0,电源被传递到电路或电路元件。 如果p<0,权力正在从电路或电路元件中提取。 在这一章中介绍的电路元素是电压源,电流源和电阻器。理想电压源保持一个规定的电压,不论当前的设备。理想电流源保持规定的电流不管了整个设备的电压。电压和电流源是独立的,也就是说,不是任何其他电路的电流或电压的影响;或依赖,就是由一些电路中的电流或电压。一个电阻制约了它的电压和电流成正比彼此。有关的比例常数电压和一个电阻值称为其电阻和欧姆测量。 欧姆定律建立相称的电压和电流的电阻。具体来说,V = IR电阻的电流流动,如果在它两端的电压下降,或V=_IR方向,如果在该电阻的电流流是在它两端的电压上升方向。 通过结合对权力的方程,P = VI,欧姆定律,我们可以判断一个电阻吸收的功率:P = I2R= U2/ R 电路节点和封闭路径。节点是一个点,两个或两个以上的电路元件加入。当只有两个元素连接,形成一个节点,他们表示将在系列。一个闭合的路径是通过连接元件追溯到一个循环,起点和终点在同一节点,只有一次每遇到中间节点。 电路是说,要解决时,两端的电压,并在每个元素的电流已经确定。欧姆定律是一个重要的方程,得出这样的解决方案。 在简单的电路结构,欧姆定律是足以解决两端的电压,目前在每一个元素。然而,对于更复杂的互连,我们需要使用两个更为重要的代数关系,被称为基尔霍夫定律,来解决所有的电压和电流。 基尔霍夫电流定律是: 在电路中的任何一个节点电流的代数和等于零。 基尔霍夫电压定律是: 电路中的任何封闭路径上的电压的代数和等于零。 1.2电路分析技术 到目前为止,我们已经分析应用结合欧姆定律基尔霍夫定律电阻电路相对简单。所有的电路,我们可以使用这种方法,但因为他们而变得结构更为复杂,涉及到越来越多的元素,这种直接的方法很快成为累赘。在这一课中,我们介绍两个电路分析的强大的技术援助:在复杂的电路结构的分析节点电压的方法,并网电流的方

电子技术专业英语试题及参考答案_A卷_amajide

分1. There can be no doubt the 1900s is remembered as the electronic century. A. which B. that C. what 2. Electrons, as one knows, are minute charge of electricity. A. negative B. positive C. reverse 3. A resistor is an electrical component that the flow of electrical current. A. increases B. changes C. resists 4. Frequency is the reciprocal of the period, if the period is 4ms, then the frequency would be . A. 4m/s B. C. 25Hz 5. The sixth power of two is . A. 12 B. 36 C. 64 6. A capacitor will block current, but appears to pass current by charging and discharging. A. DC …IC B. AC …DC C.

DC …. AC 7. For a 4-band resistor with “color code ”, the first band is the values. A. hundreds B. tens C. ten 8. An electronic device often used for amplifying voltage and current is _____________. A. transistor B. conductor C. diode 9. In a diode, current flows in ________ direction across the junction. A. only one B. two C. three 10. A __________ amplifier provides signal amplification with little or no distortion, so that the output is proportional to the input. A. nonlinear B. linear C. 1.电压有效值( ) 2. 微处理器( ) 3.电子元件( ) 4.公共端插孔( ) 5.外阻( ) 6.放大器( ) 7.脉冲直流( ) 8.电压源( ) 9.系统设计( ) 10.逻辑运 算( ) (1)internal resistance (2) pulsating DC (3)voltage sources (4)logic circuits (5)RMS voltage (6)logic operation (7)external resistance (8)number systems (9)Microprocessor (10)amplifier (11)common jack (12)digital logic circuits (13)system design (14)anode of diode (15)electrical 三、短语翻译(每小题 2 分,共 20 分) 1. Passive electrical circuits 2. Assembler language 3. The address bus 4. Analog multimeter 5. Semiconductor material 6. chip holders 7. peak-to-peak voltage 8. dual-trace oscilloscope 9. Flowchart 10. Signal generator 四、句子翻译(每小题 5 分,共 201. The impact of digital integrated circuits on our modern society has been pervasive. Without them, the

[电子行业企业管理]电子专业中英文词汇翻译

(电子行业企业管理)电子专业中英文词汇翻 译

有功功率activepower 无功功率reactivepower 视在功率apparentpower 功率因数powerfactor 功率因数补偿 power-factorpensation 串联谐振seriesresonance 并联谐振parallelresonance 谐振频率resonancefrequency 频率特性frequencycharacteristic 幅频特性 amplitude-frequencyresponsechar acteristic 相频特性 phase-frequencyresponsecharacte ristic 截止频率cutofffrequency 品质因数qualityfactor 通频带pass-band 带宽bandwidth(BW) 滤波器filter 一阶滤波器first-orderfilter 二阶滤波器second-orderfilter 低通滤波器low-passfilter 高通滤波器high-passfilter 带通滤波器band-passfilter 带阻滤波器band-stopfilter 转移函数transferfunction 波特图Bodediagram 傅立叶级数Fourierseries 三相电路 三相电路three-phasecircuit 三相电源three-phasesource 对称三相电源symmetricalthree-phasesource 对称三相负载symmetricalthree-phaseload 相电压phasevoltage 相电流phasecurrent 线电压linevoltage 线电流linecurrent 三相三线制 three-phasethree-wiresystem 三相四线制 three-phasefour-wiresystem 三相功率three-phasepower 星形连接 starconnection(Y-connection) 三角形连接triangularconnection(D-connectio n,deltaconnection) 中线neutralline 电路的暂态过程分析 暂态transientstate 稳态steadystate 暂态过程,暂态响应transientresponse 换路定理lowofswitch 一阶电路first-ordercircuit 三要素法three-factormethod 时间常数timeconstant 积分电路integratingcircuit 微分电路differentiatingcircuit 磁路与变压器 磁场magneticfield 磁通flux

电子信息工程专业英语 课文翻译 Unit 12 译文

Unit 12 生物识别技术 Unit 12-1 第一部分:指纹识别 在所有的生物技术中,指纹识别是最早期的一种技术。我们知道,每个人都有自己独特的、不可变更的指纹。指纹是由手指表皮上的一系列峰谷组成的。指纹的独特性是由这些峰谷的形状以及指纹的细节点所决定的。指纹的细节点是指纹局部凸起处的一些特性,这些特性出现在凸起的分叉处或是凸起的截止处。 指纹匹配技术可以被分为两类:基于细节的指纹匹配技术和基于相关性的指纹匹配技术。基于细节的指纹匹配首先要找出细节点,然后在手指上对应出与它们相关的位置,如图12.1所示。但是,使用这种方法存在一些困难。要精确地提取指纹的细节点是很困难的。而且,这种方法不能很好地考虑指纹峰谷的整体形状。基于相关性的指纹匹配技术可以解决部分基于细节的指纹匹配方法存在的问题,但它也存在一些自身的缺陷。基于相关性的匹配技术需要给出已注册过的特征点的精确位置,并且该方法会受图像平移和旋转的影响。 图12.1 基于细节的指纹匹配 基于细节的指纹匹配技术在匹配不同大小的细节模型时(未注册过的)会存在一些问题。指纹上局部的凸起结构不能完全由指纹细节实现特征化。我们可以尝试另一种表达指纹的方法,它可以获得更多的指纹局部信息并且得到固定长度的指纹编码。于是,我们只需要计算两个指纹编码之间的欧几里得距离,匹配过程有望变得相对简单。 研发对于指纹图像中噪声更稳健并能实时提供更高精度的算法是重要的。商用指纹(身份)认证系统对给定的错误接受率要求具有很低的错误拒绝率。在这点上,任何一项简单的技术都很难实现。我们可以从不同的匹配技术中汇总多个证据从而提高系统的总体精确度。在实际应用中,传感器、采集系统、性能随时间的变化是关键因素。为了评价系统性能,我们有必要对少数使用者在一段时间内进行现场试验。 每天我们可以从法医鉴定、出入口控制、驾驶证登记等多个方面的应用中采集并保存大量的指纹。基于指纹的自动识别系统需要把输入的指纹与数据库中大量的指纹进行匹配验证。为了缩短搜索时间、降低计算复杂度,要以准确而一致的方式将这些指纹分类,从而使输入的指纹只需与数据库某一子集中的指纹进行比对。 指纹分类是将指纹划分入多个预定义指纹类型中的一类中的一项技术。这些预定义的指纹类型是由提供索引机制的文献建立的。图12.2表示了不同类型的指纹。它们有螺纹状的、右旋状的、左旋状的、弓形的、帐篷形的。输入指纹首先粗略地被匹配为预定义的类型中的一类,随后,输入指纹仅与这一大类指纹库中的子集作更精细的比较。 图12.2 不同类型的指纹 指纹自动匹配中关键的一步是自动并且可靠地从输入指纹图像中提取出细节。然而,细节提取算法的好坏很大程度上依赖于输入图像质量的好坏。为确保自动指纹识别或确认系统的性能对于不同指纹图像质量具有稳健性,必须在细节提取模块中加入指纹增强算法。快速指纹增强算法能根据对局部指纹脊方向和频率(密度)的估计自适应地改善输入指纹图像中脊和沟结构的清晰度,如图12.3所示。实验证明加入增强算法可以显著增强指纹认证的精度。 图12.3 指纹增强 Unit 12-2 第二部分:说话人辨认介绍 介绍 现代安全系统范围很广, 通常要通过多层系统才能完全被突破。除了标准的锁和警报系统以外,还有很复杂的方法来保护重要资料。其中多数的方法为可以允许或者不允许一个特定人员获取资料——计算机系统必须能够检测出指纹、读取个人眼孔图样、或者确定说话者的真实身份。最后一点是本文讨论的重点——说话人辨认。说话人辨认经常会与其他类似的术语混淆。以下对这些术语的精确定义做出解释。 说话人识别:确定是谁在说话。 说话人辨认:初始情况下不知道说话人是谁,必须在与模板比较后确定说话人的身份。通常会有很多相关的模板。 说话人确认:确定说话者是否就是他(她)自称的那个人。仅将说话者的话音与一个样板进行比对,即他(她)自称的那一个。 语音识别:识别出人们说话时的语句。换句话说,识别出一个人在说什么而不是谁在说话。这个术语经常与声音识别相混淆。声音识别是识别出说话人。

电子元件中英文对照

一.电子元器件Electronic Components 1.保险元器件safety device (1)保险丝座 fuse block (2)电流保险丝 current fuse (3)其他保险元器件 other (4)温度保险丝 temperature fuse (5)温度开关 temperature switches (6)自恢复熔断器since the resumption of fuse 2. 变频器transducer (1)PLC 变频器 PLC transducer (2)高性能通用变频器High-performance Universal transducer (3)恒功率变频器Constant Power Inverter (4)恒转矩变频器Constant Torque converter (5)专用变频器Exclusive Inverter 3.变压器transformer (1)电源变压器Power Transformer (2)隔离变压器the isolation transformer (3)恒压变压器constant voltage transformer (4)脉冲变压器pulse transformer (5)其他变压器other transformers (6)音频变压器Audio transformers (7)自耦变压器autotransformer (8)耦合变压器coupling transformer 4.场效应管voltage controller 5. 传感器sensor (1)电磁传感器Power Transformer (2)光电传感器Photoelectric Sensors (3)光纤传感器Fiber Optic Sensors (4)加速度传感器Accelerometer (5)接近传感器Proximity sensor (6)料位、液位传感器Level, liquid level sensor (7)压力传感器Pressure Sensor (8)振动传感器Vibration Sensor (9)气体传感器Gas Sensor (10)声波传感器Acoustic sensor (11)视觉、图像传感器Visual, image sensor (12)水分、湿度传感器Moisture and humidity sensor (13)位移传感器Displacement sensor (14)敏感元件传感器Sensor sensor 6.传声器microphone 7.电容器capacitor (1)玻璃电容器Glass capacitors (2)玻璃釉电容器Glazed glass capacitors (3)复合介质电容器Composite Dielectric Capacitors

电子信息工程中英文翻译

Infrared Remote Control System Abstract Red outside data correspondence the technique be currently within the scope of world drive extensive usage of a kind of wireless conjunction technique,drive numerous hardware and software platform support. Red outside the transceiver product have cost low, small scaled turn, the baud rate be quick, point to point SSL, be free from electromagnetism thousand Raos etc.characteristics, can realization information at dissimilarity of the product fast, convenience, safely exchange and transmission, at short distance wireless deliver aspect to own very obvious of advantage.Along with red outside the data deliver a technique more and more mature, the cost descend, red outside the transceiver necessarily will get at the short distance communication realm more extensive of application. The purpose that design this system is transmit customer’s operation information with infrared rays for transmit media, then demodulate original signal with receive circuit. It use coding chip to modulate signal and use decoding chip to demodulate signal. The coding chip is PT2262 and decoding chip is PT2272. Both chips are made in Taiwan. Main work principle is that we provide to input the information for the PT2262 with coding keyboard. The input information was coded by PT2262 and loading to high frequent load wave whose frequent is 38 kHz, then modulate infrared transmit dioxide and radiate space outside when it attian enough power. The receive circuit receive the signal and demodulate original information. The original signal was decoded by PT2272, so as to drive some circuit to accomplish customer’s operation demand. Keywords:Infrare dray;Code;Decoding;LM386;Redoutside transceiver

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