This document discusses data acquisition software. It describes the purpose of data acquisition systems as measuring physical phenomena and outlines their typical components, including transducers, signals, conditioning hardware, data acquisition devices, and driver/application software. The architecture of data acquisition systems and software is explained. National Instruments' DAQ driver software and supporting applications like LabVIEW and Measurement Studio are covered. MAX software is described as a tool for configuring and testing devices. Finally, LabVIEW is introduced as a graphical programming software for creating virtual instruments with front panels and block diagrams.

1. DATA ACQUISITION
SOFTWARES

2. 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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3. ARCHITECTURE OF DATA ACQUISITION
SYSTEM
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4. DAQ SOFTWARES
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5. ARCHITECTURE OF DAQ SOFTWARE
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6. LEVELS OF SOFTWARE
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7. 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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8. 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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9. LabVIEW
• Virtual Instrument Engineering Workbench
• Graphical Programming Software
• Designed for ?
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10. WHAT IS VIRTUAL INSTRUMENT-VI ???
• Simulate a Virtual
Instrument
• Versatile
• It is stored as …
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11. 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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12. THANK YOU…