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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…