DATA ACQUISITION SOFTWARES

THE PURPOSE OF A DATA ACQUISITION SYSTEM

• To measure a physical phenomenon such as light, temperature,

pressure, sound, etc.

• The building blocks of a Data Acquisition system

Transducer

Signal

Signal Conditioning eXtensions for Instrumentation (SCXI)

Data Acquisition (DAQ) device

Driver level and application level software

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ARCHITECTURE OF DATA ACQUISITION SYSTEM

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DAQ SOFTWARES

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ARCHITECTURE OF DAQ SOFTWARE

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LEVELS OF SOFTWARE

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NI - DAQ

• Driver level software

DLL that communicate with DAQ device

• Supporting National Instruments softwares

National Instruments LabVIEW

National Instruments Measurement Studio

• Supporting 3rd party languages

Microsoft C/C++

Visual Basic

Borland C++

Borland Delphi

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MAX

• Measurement & Automation Explorer

• MAX provides access to all your National Instruments DAQ, GPIB, IMAQ, IVI, Motion, VISA, and VXI devices

• Used for configuring and testing devices

• Functionality broken into:

Data Neighborhood

Devices and Interfaces

Scales

Software

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LabVIEW

• Virtual Instrument Engineering Workbench

• Graphical Programming Software

• Designed for ?

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WHAT IS VIRTUAL INSTRUMENT-VI ???

• Simulate a Virtual

Instrument

• Versatile

• It is stored as …

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WHAT IS VIRTUAL INSTRUMENT-VI ???

•Front Panel

Controls = Inputs

Indicators = Outputs

•Block Diagram

Accompanying "program"

for front panel

Components "wired" together

Input Output

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THANK YOU…