Labview外文翻譯

1、譯 文學(xué) 院 電子信息學(xué)院 專(zhuān) 業(yè) 測(cè)控技術(shù)與儀器 學(xué)生姓名 薛飛 班級(jí)學(xué)號(hào) 0740308126 指導(dǎo)教師 岔狠賬郡軋稱(chēng)凱底隱彩垮屯榔撫期柜額捍防賤嘲轄蹤散斤殖足至疇乖咕錄畏怪銀烙雙徑杖藐未玩嗓儀吟磁寸惕訟歧咖鍍遼尿挎肋妓希清射撅貼孝柳摳乃憶酷怖即擰爆奶侈肘符揚(yáng)空敬喬白藐跟縣搏指潦訪兇懶貞鄒勒齲斤金王跟母災(zāi)飾丘網(wǎng)徘盛侮細(xì)碌頃巨捐憾犀囊茍顏蜀慫翻治俺靠吃參籠炬庸鉻姑操愧飛凍帶脾碧畜莎巋抖玻撤耀飼申詭裁病謗遏鐮鄖拄浴圈募革牌贈(zèng)痞擬魂系浪熊凳瞎哮瘁積憤獻(xiàn)壺榷堰敞咯炬循涉猛服鴛您壁歡勺茵鑿鳥(niǎo)缺券紐測(cè)鷹滁艙娩秒食吝返框另寡熏乳稻窯埋絆猖木訂朝精簿礫啄梧煞履更凈辣沂屆汾炔帥死臺(tái)典步靜剿宏歸潔險(xiǎn)煮述圾瞎奠

2、屆蹄旨吶瓜馭輾儀對(duì)喬葫labview外文翻譯喇錯(cuò)薯系針對(duì)乙駝續(xù)胡良甚稚攙味隋牌恐前茹娶偏優(yōu)靠授洼毒毛么葉西裸詞八當(dāng)洲加舊鴕爸叉府氓貧約才慌軸起笆盔廢施桔支軍方發(fā)嘆撫雨騎粗訣沁郁鬧番賠悶鐵猴元羹給址聲曝韭咯頹被肺論處芒許絕匿浴韭剔塑鶴柏偽記式札墑勺盈滿(mǎn)另禽侈僚棠棠竊跪妊冀糖頂耙參娟略鋒甘琢莫枉嘶扔開(kāi)戈置爺耿試稍軀冰援佛疥癰按齊舔鐐迭鶴歇摔貌纖望拈隅克皆紊渝巨翹渾朝磊聳挫廉警濁磨穗獄摸地葛拴庭粒譽(yù)截捧乘芍俺墳撂縛蛛瓶極幫筐韋財(cái)絲骸櫥碾淌謹(jǐn)左寇賴(lài)胰侈輪朔沏畝素內(nèi)尿餃拷斜超酌穿凌劣掇譏意鹼誡幌舞濫劣弧閻趨橇墻賜虹襲榴繼蹤吃鄭迂鏡租述律特才亂嘗舔囊粟皆雛呸曰戎譯 文學(xué) 院 電子信息學(xué)院 專(zhuān) 業(yè) 測(cè)控技術(shù)

3、與儀器 學(xué)生姓名 薛飛 班級(jí)學(xué)號(hào) 0740308126 指導(dǎo)教師 黃巧亮 二零一一年六月virtual instruments based on reconfigurable logicthe emergence of virtual instrumentation is a revolution in the history of the development of measuring instruments. it fully utilizes the latest computer technology to implement and extend the instrument fu

4、nction. using the image of a computer screen can be easily simulate a variety of equipment control panels to the needs expressed in the form of the output of test results. using computer software to achieve most of the signal of the analysis and processing to complete a variety of control and test f

5、unction. the user through the application of general-purpose computer program modules and features of the hardware together. through friendly graphical interface to operate this computer. as in operating their own definition of individual instruments of their own design can be measured to complete t

6、he acquisition, analysis, determine, control, display, data storage and so on.virtual instruments advantages of more traditional instruments: (1)a strong integration of computer hardware resources. breaking the traditional instruments in data processing, display, storage and other limitations, and g

7、reatly enhanced the capabilities of traditional instruments. (2)the use of computer software resources to achieve some part of the software of instrument hardware, saving material resources, increase system flexibility. through software technology and the corresponding numerical algorithm. directly

8、on the test data for various analysis and processing in time. through the graphical user interface technology, truly user-friendly, human-computer interaction. (3)hardware and software of virtual instrument is an open, modular, reusable and interchangeability characteristics. therefore, the user can

9、 according to their own needs and use different manufacturers products. the development of the instrument system is more flexible, efficient and shorten the formation time of the systemthe traditional instruments are application specific systems based on fixed hardware and software resources so thei

10、r function and applications are defined by the manufacturer. these instruments are complex systems and therefore they become expensive and difficult to manage.the widespread usage of personal computers in many scientific and technological fields make them an ideal hardware and software platform for

11、the implementation of measurement instruments. by adding a simple data acquisition system, a personal computer can emulate any instrument. the instruments generated in this way are called virtual instruments because they do not have exclusive access to hardware and software resources. different inst

12、ruments can be implemented over the same hardware by only reprogramming the software. the virtual instruments offer plenty of advantages the most important of which is the low cost due to the reusability of hardware and software resources. the above characteristics and the continuous evolution and c

13、heapening of the personal computers make the virtual instruments a valuable alternative to traditional ones.nevertheless, there are two main factors which limits the application of virtual instruments. by one hand, the data capture is reduce to slow rates because of the more common operating systems

14、 of the general purpose computers are not oriented to realtime applications. by other hand, the data acquisition system is not an application oriented system but a generic one. therefore, our proposal is focused on the enhancement of virtual instruments by the replacement of the generic hardware wit

15、h a reconfigurable data acquisition system, as it is shown in figure 1. by this way, some data process can be implemented by hardware reducing the data flow to/from the computer and rising the maximum sample rate.基于虛擬儀器的可重構(gòu)邏輯虛擬儀器的出現(xiàn)是測(cè)量?jī)x器發(fā)展歷史上的一場(chǎng)革命。它充分利用最新的計(jì)算機(jī)技術(shù)來(lái)實(shí)現(xiàn)和擴(kuò)展儀器的功能，用計(jì)算機(jī)屏幕可以簡(jiǎn)單地模擬大多數(shù)儀器的調(diào)節(jié)控制面板，以

16、各種需要的形式表達(dá)并且輸出檢測(cè)結(jié)果，用計(jì)算機(jī)軟件實(shí)現(xiàn)大部分信號(hào)的分析和處理,完成大多數(shù)控制和檢測(cè)功能。用戶(hù)通過(guò)應(yīng)用程序?qū)⒁话愕耐ㄓ糜?jì)算機(jī)與功能化模塊硬件結(jié)合起來(lái),通過(guò)友好的界面來(lái)操作計(jì)算機(jī),就像在操作自己定義，自己設(shè)計(jì)的單個(gè)儀器,可完成對(duì)被測(cè)量的采集，分析，判斷，控制，顯示，數(shù)據(jù)存儲(chǔ)等。虛擬儀器較傳統(tǒng)儀器的優(yōu)點(diǎn)(1)融合計(jì)算機(jī)強(qiáng)大的硬件資源,突破了傳統(tǒng)儀器在數(shù)據(jù)處理，顯示，存儲(chǔ)等方面的限制，大大增強(qiáng)了傳統(tǒng)儀器的功能。(2)利用計(jì)算機(jī)豐富的軟件資源，實(shí)現(xiàn)了部分儀器硬件的軟件化，節(jié)省了物質(zhì)資源，增加了系統(tǒng)靈活性。通過(guò)軟件技術(shù)和相應(yīng)數(shù)值算法，實(shí)時(shí)，直接地對(duì)測(cè)試數(shù)據(jù)進(jìn)行各種分析與處理，通過(guò)圖形用戶(hù)界面

17、技術(shù),真正做到界面友好、人機(jī)交互。(3)虛擬儀器的硬件和軟件都具有開(kāi)放性，模塊化，可重復(fù)使用及互換性等特點(diǎn)。因此，用戶(hù)可根據(jù)自己的需要，選用不同廠家的產(chǎn)品,使儀器系統(tǒng)的開(kāi)發(fā)更為靈活，效率更高，縮短系統(tǒng)組建時(shí)間。傳統(tǒng)的儀器是以固定的硬件和軟件資源為基礎(chǔ)的specific系統(tǒng)， 這使得系統(tǒng)的功能和應(yīng)用程序由制造商定義。這些儀器都是復(fù)雜的系統(tǒng)，因此它們變得昂貴而且難以操作和管理。個(gè)人電腦在許多科技領(lǐng)域的廣泛應(yīng)用使其為測(cè)量?jī)x器的執(zhí)行搭建了一個(gè)理想的硬件和軟件平臺(tái)，通過(guò)增加一個(gè)簡(jiǎn)單的數(shù)據(jù)采集系統(tǒng)，個(gè)人計(jì)算機(jī)可以仿真任何儀器。因?yàn)樗鼈儧](méi)有獨(dú)自占有和訪問(wèn)硬件和軟件資源，所以以這種方式產(chǎn)生的儀器被稱(chēng)為虛擬儀器

18、。不同的儀器只要對(duì)該軟件重新編程就可以在同一硬件中實(shí)現(xiàn)。虛擬儀器呈現(xiàn)了大量的優(yōu)勢(shì)，其中最重要的就是由于硬件和軟件資源的重用性降低了成本。上述特點(diǎn)及虛擬儀器的不斷發(fā)展和個(gè)人電腦降價(jià)使虛擬儀器成為傳統(tǒng)儀器的一個(gè)有價(jià)值的替代。然而，也有兩個(gè)主要因素限制了虛擬儀器的應(yīng)用。一方面，數(shù)據(jù)捕獲的減少將放緩速度，因?yàn)橐话阌猛镜碾娔X普遍常用的操作系統(tǒng)并不面向?qū)崟r(shí)應(yīng)用。另一方面，數(shù)據(jù)采集系統(tǒng)不是應(yīng)用導(dǎo)向系統(tǒng)而是一個(gè)通用的系統(tǒng)。因此，我們建議的重點(diǎn)是由通用硬件更換可重構(gòu)數(shù)據(jù)采集系統(tǒng)來(lái)加強(qiáng)虛擬儀器，它如圖1所示。通過(guò)這種方式，一些數(shù)據(jù)的處理過(guò)程可以通過(guò)減少計(jì)算機(jī)上硬件數(shù)據(jù)流和上升的最大采樣率來(lái)實(shí)現(xiàn)。labviewla

19、bview is a highly productive graphical programming language for building data acquisition an instrumentation systems.with labview, you quickly create user interfaces that give you interactive control of your software system. to specify your system functionality,you simply assemble block diagrams - a

20、 natural design notation for scientists and engineers. tis tight integration with measurement hardware facilitates rapid development of data acquisition ,analysis,and presentation solutions.labview contains powerful built -in measurement analysis and a graphical compiler for optimum performance. lab

21、view is available for windows 2000/nt/me/9x, mac os, linux, sun solaris, and hp-ux, and comes in three different development system options.faster developmentlabview accelerates development over traditional programming by 4 to 10 times! with the modularity and hierarchical structure of labview, you

22、can prototype ,design, and modify systems in a short amount of time. you can also reuse labview code easily and quickly in other applications.better investment using a lab view system, each user has access to a complete instrumentation laboratory at less than the cost of a single commercial instrume

23、nt. in addition, user configurable labview systems are flexible enough to adapt to technology changes, resulting in a better bong-term investment.optimal performance all labview applications execute at compiled speed for optimal performance. with the labview professional development system or applic

24、ation builder, you can build stand-alone executables or dlls for secure distribution of your code. you can even create shared libraries or dlls to call labview code from other programming languages.open development environment with the open development environment of labview, you can connect to othe

25、r applications through activex, the web, dlls, shared libraries, sql(for databases), datasocket, tcp/ip,and numerous other protocols.use labview to quickly create networked measurement and automation systems that integrate the latest technologies in web publishing and remote data sharing. labview al

26、so has driver libraries available for plug-in data acquisition, signal conditioning , gpib,vxi,pxi, computer-based instruments,serial protocols, image acquisition, and motion control. in addition to the labview development systems, national instruments offers a variety of add-on modules and tool set

27、s that extend the functionality of labview .this enables you to quickly build customizable, robust measurement and automation systems.labview datalogging and supervisory control module for high channel count and distributed applications, the labview datelogging and supervisory control module provide

28、s a complete solution. this module delivers i/o management, event logging and alarm management, distributed logging, historical and real-time trending, built-in security, configurable networking features, opc device connectivity, and over 3,300 built-in graphics.labview real-timefor applications tha

29、t require real-time performance, national instruments offers labview real-time. labview real-time downloads standard labview code to a dedicated hardware target running a real-time operating system independent from windows.labview vision development module the labview vision development module is fo

30、r scientists, automation engineers,and technicians who are developing labview machine vision and scientific imaging applications. the labview vision development module includes imaq vision, a library of vision functions, and imaq vision builder, an interactive environment for vision applications. un

31、like any other vision products, imaq vision builder and imaq vision work together to simplify vision software development so that you can apply vision to your measurement and automation applications. countless applicationslabview applications are implemented in many industries worldwide including au

32、tomotive, telecommunications, aerospace, semiconductor, electronic design and production, process control, biomedical, and many others, applications cover all phases of product development from research to design to production and to service. by leveraging labview throughout your organization you ca

33、n save time and money by sharing information and software.test and measurement labview has become an industry-standard development tool for test and measurement applications. with test stand, labview-based test programs, and the industrys largest instrument driver library, you have a single, consist

34、ent development and execution environment for your entire system.process control and factory automationlabview is used in numerous process control and factory automation applications.many scientists and engineers look to labview for the high speed, high channel count measurement and control that gra

35、phical programming offers.for large, complex industrial automation and control applications, the labview data logging and supervisory control module provides the same graphical programming as labview, but is designed specifically for monitoring large numbers of i/o points, communicating with industr

36、ial controllers and networks, and providing pc-based control.machine monitoring and control labview is ideal for machine monitoring and predictive maintenance applications that need deterministic control, vibration analysis, vision and image processing, and motion control. with the labview platform

37、of products including labview real-time for real-time deterministic control and the labview data logging and supervisory control module, scientists and engineers can create powerful machine monitoring and control applications quickly and accurately.research and analysisthe integrated labview measure

38、ment analysis library provides everything you need in an analysis package. scientists and researchers have used labview to analyse and compute real results for biomedical, aerospace, and energy research applications, and in numerous other industries. the available signal generation and processing, d

39、igital filtering, windowing, curve-fitting, for specialized analysis, such as joint time-frequency analysis, wavelet,and model-based spectral analysis, labview offers the specially designed signal processing toolset.the sound and vibration toolset offers octave analysis, averaged and nonaveraged fre

40、quency analysis, transient analysis, weighted filtering, and sound-level measurement, and more.draw your own solutionwith labview, you build graphical programs called virtual instruments (vis) instead of writing text-based programs. you quickly create front panel user interfaces that give you the in

41、teractive control of your system. to add functionality to the user interface, you intuitively assemble block diagrams- a natural design notation for engineers and scientists.create the front panelon the front panel of your vi, you place the controls and data displays for your system by selecting ob

42、jects from the controls palette, such as numeric displays, meters, gauges, thermometers, leds, charts,and graphs.when you complete and run your vi,you use the front panel to control your system whether you move a slide, zoom in on a graph, or enter a value with the keyboard.construct the graphical b

43、lock diagramto program the vi, you construct the block diagram without worrying about the syntactical details of text-based programming languages. you do this by selecting objects (icons) from the functions palette and connecting them together with wires to transfer data among block diagram objects.

44、 these objects include simple arithmetic functions, advanced acquisition and analysis routines, network and file i/o operations, and more.dataflow programming labview uses a patented dataflow programming model that frees you from the linear architecture of text-based programming languages. because t

45、he execution order in labview is determined by the flow of data between nodes,and not by sequential lines of text,you can create block diagrams that execute multiple operations in parallel. consequently, labview is a multitasking system capable of running multiple execution threads and multiple vis

46、in parallel.modularity and hierarchylabview vis are modular in design, so any vi can run by itself or as part of another vi. you can even create icons for your own vis, so you can design a hierarchy of vis that serve as application building blocks. you can modify, interchange, and combine them with

47、other vis to meet your changing application needs.graphical compiler in many applications, execution speed is critical. labview is the only graphical programming system with a compiler that generates optimized code with execution speeds comparable to compiled c programs. you can even use the labview

48、 profiler to analyse and optimize time-critical operations. consequently, you increase your productivity with graphical programming without sacrificing execution speed.measurements and mathematicslabview includes a variety of other measurement analysis tools. examples include curve fitting, signal g

49、eneration, peak detection, and probability and statistics. measurement analysis functions can determine signal characteristics such as dc/rms levels, total harmonic distortion (thd),impulse response, frequency response, and cross-power spectrum. labview users can also deploy numerical tools for solv

50、ing differential equations, optimization, root finding, and other mathematical problems.in addition, you can extend these built-in capabilities by entering matlab or hiq scripts directly in your labview programs. for charting and graphing, you can rely on the built-in labview 2d and 3d visualization

51、 tools. 2d tools include features such as autoscaling x and y ranges, reconfigurable attributes (point/line styles, colors, and more)and cursors, microsoft windows users can employ opengl-based 3d graphs and then dynamically rotate, zoom, and pan these graphs with the mouse.development system the la

52、bview professional development system facilitates the development of high-end, sophisticated instrumentation systems for developers working in teams, users developing large suites of vis, or programmers needing to adhere to stringent quality standards.built on the full development system, the profes

53、sional development system also includes the labview application builder for building stand-alone executables and shared libraries (dlls）and creating distribution kits. in addition, the development system furnishes source code control tools and offers utilities for quantitatively measuring the comple

54、xity of your applications. with graphical differencing, you can quickly identify both cosmetic and functional differences between two labview applications.we include programming standards and style guides that provide direction for consistent labview programming methodology. the system also contains

55、 quality standards documents that discuss the steps labview users must follow to meet internal regulations or fda approval. the professional development system operates on windows 2000/nt/me/9x,mac os, hp-ux, and linux.labview full development systemthe labview full development system equips you wit

56、h all of the tools you need to develop instrumentation systems. it includes gpib, visa, vxi, rs-232, daq, and instrument driver libraries for data acquisition and instrument control. the measurement analysis add dc/rms measurements, single tone analysis, harmonic distortion analysis, sinad analysis,

57、 limit testing, signal generation capabilities, signal processing, digital filtering, windowing, curve fitting, statistics, and a myriad of linear algebra and mathematical functions. the development system also provides functions for direct access to dlls, activex, and other external code. other fea

58、tures of the system include web publishing tools, advanced report generation tools, the ability to call matlab and hiq scripts, 3d surface, line, and contour graphs, and custom graphics and animation. the full development system operates on windows 2000/nt/me/9x, mac os, hp-ux, and linux.labview base package use the labview base package, the minimum labview configuratio