1、labviewlabview 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 systerru to specify your system functionality,you simply assemble block di

2、agrams - a 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 perform

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

4、w, you 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 investmentusing a lab view system, each user has access to a complete instrumentation laboratory at less than the cost of a single commercial in

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

6、lication 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 languagesopen development environmentwith the open development environment of labview, you can connect to oth

7、er 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 a

8、lso 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 se

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

10、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

11、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 modulethe labview vision developme nt module is fo

12、r scientists, automatio n engineers,a nd 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.

13、unlike 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 a

14、utomotive, 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

15、n save time and money by sharing infonnation and softwaretest and measurementlabview has become an industry-standard development tool for test and measurement applications. with test stand，labview-based test programs, and the industry's largest instrument driver library, you have a single, consi

16、stent 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 g

17、raphical 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 indus

18、trial controllers and networks, and providing pc-based control.machine monitoring and controllabview 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

19、 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 measu

20、rement 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,

21、digital 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 fr

22、equency 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 i

23、nteractive 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

24、 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

25、block 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

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

27、e 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 i

28、n 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 o

29、ther vis to meet your changing application needs.graphical compilerin 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 p

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

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

32、ifferential 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 tool

33、s 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 openglbased 3d graphs and then dynamically rotate, zoom, and pan these graphs with the mousedevelopment systemthe lab view pr

34、ofessional development system facilitates the development of high-e nd, 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 professional

35、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 complexity o

36、f 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 qualit

37、y 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 with all o

38、f 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, limit

39、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 features of

40、 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 packag

41、euse the labview base package, the minimum labview configuration, for developing data acquisition and analysis, instrument control, and basic data presentation. the base package operates on windows 2000/nt/me/9x.debug license for labviewif you deploy labview applications, including labview tests for

42、 use with test stand, the debug license allows you to install the labview development system on the target machines so you can step into your test code for complete test debugging. this license is not intended (or program development.虛擬儀器(labview)艱擬儀器是一種高效用于構建數(shù)據(jù)采集與監(jiān)測系統(tǒng)圖形化編程語言。使用虛擬儀器，您 快速創(chuàng)建用戶界面，讓您交互控

43、制您的軟件系統(tǒng)。要指定您系統(tǒng)的功能，您只盅裝配塊關系 圖一一種自然的設計表示科學家和工程師。測量硬件緊密集成方便了數(shù)據(jù)采集、分析與演示 文稿解決方案的快速發(fā)展。虛擬儀器包含強人的內置度量分析和一個圖形的編輯器實現(xiàn)最佳 性能。虛擬儀器是使用于 windows 2000/nt/me/9x. mac os> linux、sun solaris 和 hp-ux, 有三種不同的開發(fā)系統(tǒng)選項。更快地發(fā)展虛擬儀器通過加快發(fā)展了對傳統(tǒng)的編程提升了 4至10倍！使用模塊化和層次結構的虛 擬儀器，可以原型，設計，并且在一個短時間內修改系統(tǒng)。您也可以重用虛擬儀器代碼輕松 快速地在其他應用程序中應用。更好的投資

44、使用虛擬儀器系統(tǒng)，每個用戶有權訪問單一的商業(yè)文書的成本低于一個完整的檢測實驗 室。此外，用戶還對配置的虛擬儀器系統(tǒng)足夠的靈活性，從而更好地長期投資的技術變化與 適應。優(yōu)化性能熄擬儀器的所有應用程序執(zhí)行以獲得最佳性能的編譯速度。用虛擬儀器專業(yè)開發(fā)系統(tǒng)或 應用程序生成器，可為您的代碼的安全通訊生成獨立可執(zhí)行文件或dll。您甚至可以創(chuàng)建共 亨的庫或從其他編程語言中調用虛擬儀器代碼的小1。開放的開發(fā)環(huán)境用虛擬儀器在開放開發(fā)環(huán)境，您可以連接到通過activex、web、dlk共享的庫、sql (數(shù)據(jù)庫)、datasocket. tcp/ip和許多其他協(xié)議的其他應用程序。虛擬儀器用于快速創(chuàng)建 網(wǎng)絡的測量和

45、web發(fā)布和遠程數(shù)據(jù)共享最新的科技集成的自動化系統(tǒng)。虛擬儀器也可以用于 插件數(shù)據(jù)采集、信號調理、gpib、vxi、pxi、基于計算機的儀器、串行協(xié)議、圖像采集和運 動控制的驅動程序。除了在虛擬儀器的開發(fā)系統(tǒng)國家儀器還提供多種附加模塊和擴展功能的 虛擬儀器的工具集。這使您可以快速構建可定制、魯棒的測量和自動化系統(tǒng)。虛擬儀器數(shù)據(jù)記錄和監(jiān)督控制模塊高通道數(shù)的分布式應用程序口志記錄的虛擬儀器數(shù)據(jù)和監(jiān)督控制模塊，提供了一個完整 的解決方案。此模塊提供了 i/o管理、事件日志和警報管理、分布式日志記錄、歷史和實時 趨勢分析、內置安全、網(wǎng)絡功能，可配置、opc設備的連接和超過3, 300內置圖形。實時虛擬儀

46、器對于需要實時性能的應用國家儀器，提供了實時虛擬儀器。屜擬儀器從windows運行獨 立的實時操作系統(tǒng)實時下載標準虛擬儀器代碼到專用的硬件目標。虛擬儀器視覺開發(fā)模塊虛擬儀器視覺開發(fā)模塊是為科學家、自動化的工程師和技術人員正在開發(fā)虛擬機器視覺 和科學的圖像處理應用程序。虛擬儀器視覺開發(fā)模塊包括ihaq視覺，視覺的函數(shù)庫和imaq 視覺一起工作來簡化視覺軟件開發(fā)，以便您可以應用視覺測量和自動化應用程序。廣泛的應用在很多行業(yè)全球包括汽車、電訊、航空航天、半導體、電子設計和生產(chǎn)、過程控制生物 醫(yī)學，以及許多其他實現(xiàn)虛擬儀器的應用程序。應用程序覆蓋產(chǎn)品從設計到生產(chǎn)和服務的研 究開發(fā)的所有階段。利用虛擬儀

47、器在整個組織您可以節(jié)省時i'可和金錢的共享信息和軟件。測試與測量虛擬儀器己經(jīng)成為一個行業(yè)標準開發(fā)工具，用于測試和測量的應用程序。與試驗臺，基 于虛擬儀器的測試的程序和業(yè)界最大檢測驅動程序庫，為您的整個系統(tǒng)有一個單一、一致的 開發(fā)和執(zhí)行環(huán)境。過程控制和工廠自動化在眾多的過程控制與工廠自動化應用中使用虛擬儀器。很多科學家和工程師希望虛擬儀 器的高速度、高通道累計測量和控制該圖形編程提供。大型、復雜工業(yè)自動化和控制應用程 序，為h志記錄的虛擬儀器數(shù)據(jù)和監(jiān)督控制模塊提供相同圖形編程作為虛擬儀器，但專門用 于監(jiān)視大量的i/o點、工業(yè)控制器和網(wǎng)絡，溝通和提供基于pc的控制。計算機檢測與控制虛擬儀器

48、是計算機檢測和預測性維護應用程序需要具有確定性控制、振動分析、視覺和 圖像處理，和運動控制的理想選擇。產(chǎn)品包括虛擬儀器實時確定性實時控制和日志記錄的虛 擬儀器數(shù)據(jù)及監(jiān)督控制模塊的該虛擬儀器平臺與科學家和工程師可以快速而準確地創(chuàng)建功 能強大的計算機監(jiān)視和控制應用程序。研究與分析集成的虛擬儀器測量分析庫提供了一個分析軟件包中的所需的一切。科學家和研究人員 已用虛擬儀器來分析和計算的實際結果生物醫(yī)學，航天和能源研究應用程序，和很多其它行 業(yè)。可用的信號的生成和處理、數(shù)字濾波、窗口、曲線的擬合和限制掩碼測試功能列出的聯(lián) 合時-頻分析，小波，并基于模型的虛擬頻譜分析提供特別設計的信號處理工具集。聲音和

49、振動工具集提供octave分析，平均和非平均的頻率分析、瞬態(tài)分析、加權的篩選，與聲級 測量，等等。繪制自己的解決方案虛擬儀器，使用屮，您將構建稱為虛擬儀器（vis）的而不是編寫基于文本的程序的圖 形程序。您快速創(chuàng)建前面板的用八界面為您提供您的系統(tǒng)的交互式控件的用八界面。將功能 添加到用戶界面，您直觀地裝配塊關系圖一一種提供給工程師和科學家自然的設計表示法。創(chuàng)建前面板您的虛擬儀器的前面板上，控件和數(shù)據(jù)顯示為您的系統(tǒng)通過放置在控件調色等數(shù)字顯 示、米、儀表、溫度計、指示燈、圖表和圖表中選擇對彖。當您完成運行您的虛擬儀器時您 使用前面板來控制您的系統(tǒng)是否移動放大的圖形，或輸入用鍵盤的值。構建該圖形的框圖要在虛擬儀器進行編程您需要構建塊關系圖無需擔心的基于文本的編程語言的語法的 詳細信息。您執(zhí)行此操作的功能調色板中選擇對象（圖標）