Labview毕业论文毕业论文中英文资料外文翻译文献

得昂贵而且难以操作和管理。个人电脑在许多科技领域的广泛应用使其为测量

仪器的执行搭建了一个理想的硬件和软件平台，通过增加一个简单的数据采集

系统， 个人计算机可以仿真任何仪器。因为它们没有独自占有和访问硬件和软

件资源，所以以这种方式产生的仪器被称为虚拟仪器。不同的仪器只要对该软

件 重新编程就可以在同一硬件中实现。虚拟仪器呈现了大量的优势，其中最重

要的就是由于 硬件和软件资源的重用性降低了成本。上述特点及虚拟仪器的不

断发展和个人电脑降价使 虚拟仪器成为传统仪器的一个有价值的替代。

然而，也有两个 主要因素限制了虚拟仪器的应用。一方面，数据捕获的减

少将放缓速度，因为一般用途的 电脑普遍常用的操作系统并不面向实时应用。

另一方面，数据采集系统不是应用导向系统 而是一个通用的系统。因此，我们

建议的重点是由通用硬件更换可重构数据采集系统来加 强虚拟仪器，它如图

1

所示。通过这种方式，一些数据的处理过 程可以通过减少计算机上硬件数据流

和上升的最大采样率来实现。

LabVIEW

LabVIEW is a highly productive graphical programming language for building

data acquisition an instrumentation 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 natural design notation

for

scientists

and

engineers.

Tis

tight

integration

with

measurement

hardware

facilitates

rapid

development

of

data

acquisition

,analysis,and

presentation

W

contains

powerful

built

-in

measurement

analysis

and

a

graphical

compiler

for

optimum

performance.

LabVIEW

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 Development

LabVIEW

accelerates

development

over

traditional

programming

by

4

to

10

times!

With

the

modularity

and

hierarchical

structure

of

LabVIEW,

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 Investment

Using a Lab VIEW system, each user has access to a complete instrumentation

laboratory at less than the cost of a single commercial instrument. 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 Application 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 other

applications through ActiveX, the Web, DLLs, shared libraries, SQL(for databases),

DataSocket, TCP/IP,and numerous other LabVIEW to quickly create

networked

measurement

and

automation

systems

that

integrate

the

latest

technologies in Web publishing and remote data sharing. LabVIEW also 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

sets

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 provides 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-Time

For applications that 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

for

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. 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 Applications

LabVIEW applications are implemented in many industries worldwide including

automotive,

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 can 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

industry's

largest

instrument

driver

library,

you

have

a

single,

consistent

development and execution environment for your entire system.

Process Control and Factory Automation

LabVIEW

is

used

in

numerous

process

control

and

factory

automation

scientists

and

engineers

look

to

LabVIEW

for

the

high

speed,

high channel count measurement and control that graphical programming

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

industrial

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 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 Analysis

The integrated LabVIEW measurement 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, 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

Sound

and

Vibration

Toolset

offers

octave

analysis,

averaged

and

nonaveraged

frequency

analysis,

transient

analysis,

weighted

filtering,

and

sound-level

measurement,

and

more.

Draw Your Own Solution

With 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 interactive 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 Panel

On the front panel of your VI, you place the controls and data displays for your

system

by

selecting

ob

jects

from

the

Controls

palette,

such

as

numeric

displays,

meters, gauges, thermometers, LEDs, charts,and 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 Block Diagram

To 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.

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

the

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 in parallel.

Modularity and Hierarchy

LabVIEW 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

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 profiler

to

analyse

and

optimize

time-critical

operations.

Consequently,

you

increase

your

productivity with graphical programming without sacrificing execution speed.

Measurements and Mathematics

LabVIEW

includes

a

variety

of

other

measurement

analysis

tools.

Examples

include curve fitting, signal generation, 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

solving

differential

equations,

optimization,

root

finding,

and

other

mathematical

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 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 LabVIEW 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

on

the

Full

Development

System,

the

Professional

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

of

your

applications.

With

graphical

differencing,

you

can

quickly

identify

both

cosmetic

and

functional

differences between two LabVIEW include programming standards

and

style

guides

that

provide

direction

for

consistent

LabVIEW

programming

methodology. The system also contains 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 System

The LabVIEW Full Development System equips you with 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,

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 features

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

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 LabVIEW

If

you

deploy

LabVIEW

applications,

including

LabVIEW

tests

for

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 for program development.

虚拟仪 器（

LabVIEW

）

虚拟仪器是一种高效用于构建数据采集与监测系统图形化编程语言。使用

虚拟 仪器，您快速创建用户界面，让您交互控制您的软件系统。要指定您系统

的功能，您只需 装配块关系图—一种自然的设计表示科学家和工程师。测量硬

件紧密集成方便了数据采集 、分析与演示文稿解决方案的快速发展。虚拟仪器

包含强大的内置度量分析和一个图形的 编辑器实现最佳性能。虚拟仪器是使用

于

Windows 2000/NT/Me/9x

、

Mac OS

< br>、

Linux

、

Sun Solaris

和

HP- UX

，

有三种不同的开发系统选项。

更快地发展

虚拟仪器通过加快发展了 对传统的编程提升了

4

至

10