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Labview

The LabVIEW 7.1 Tutorial provides an introduction to LabVIEW software for virtual instrumentation and data acquisition, detailing its features and applications in various fields such as signal processing and control systems. The document outlines the goals of the lab work, lists experiments, and discusses the necessary lab equipment. It also emphasizes the importance of understanding DAQ systems, sensor selection, and system limitations for engineering students.

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13 views19 pages

Labview

The LabVIEW 7.1 Tutorial provides an introduction to LabVIEW software for virtual instrumentation and data acquisition, detailing its features and applications in various fields such as signal processing and control systems. The document outlines the goals of the lab work, lists experiments, and discusses the necessary lab equipment. It also emphasizes the importance of understanding DAQ systems, sensor selection, and system limitations for engineering students.

Uploaded by

924117246
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PPT, PDF, TXT or read online on Scribd
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LabVIEW 7.1 Tutorial.

Measurement Lab. MECH262-MECH261

Imran Haider Malik

January 16, 2006


Outline
• Introduction
• LabVIEW Introduction
• Data Acquisition (DAQ)
• Features of LabVIEW
• Example
• LabVIEW Interface
• Lab. Equipment
• Goals of the Lab. Work
• List of Experiments.
• Introduction to TAs and Lab. Technicians.
• Conclusions.
LabVIEW 7.1
• Product of National Instruments (NI)
• Software for Virtual Instrumentation
• Data Acquisition (DAQ)
• Graphical Programming
• Data Storage and Analysis for wide Range of
Applications
Data Acquisition (DAQ)
Time dependant Signal Recording (Acquisition)
Components of DAQ:
• Sensor ( Active or Passive)
• Signal Conditioner (nowadays built-in with DAQ
card)
• DAQ Card
• DAQ Software (LabVIEW)
Features of LabVIEW 7.1
• Design
– Signal and Image Processing
– Embedded System Programming
• (PC, DSP, FPGA, Microcontroller)
– Simulation and Prototyping
– And more…
• Control
– Automatic Controls and Dynamic Systems
– Mechatronics and Robotics
– And more…
• Measurements
– Circuits and Electronics
– Measurements and Instrumentation
– And more…
Example
Sound Signal Acquisition

This can help Design a Tuning


Device for Musical
Instruments.
LabVIEW Interface
Each Virtual Instrument (VI) has 2 Front Panel
Windows
Front Panel
• User Interface (UI)
– Controls = Inputs
– Indicators = Outputs
Block Diagram
Block Diagram
• Graphical Code
– Data travels on wires from
controls through functions to
indicators
– Blocks execute by Dataflow
LabVIEW Interface (Contd)
• Help»Show Context Help, press the <Ctrl+H>
keys
• Hover cursor over object to update window
Additional Help
– Right-Click on the VI
icon and choose Help,
or
– Choose “Detailed
Help.” on the context
help window
LabVIEW Interface (Contd)
LabVIEW Interface (Contd)
LabVIEW Interface (Contd)
LabVIEW Interface (Contd)
Lab. Equipment
Universal Measuring
• Oscilloscope Instruments

• Function Generator Signal Generator

• Digital Voltmeter (DVM)


Goals of the Lab. Work
• Introduce LabVIEW
• DAQ
• Introduce different Sensors and their comparison
• Use of Electronic instruments:
Oscilloscope, Function Generator
Digital Volt-meter (DVM).
List of Experiments.
1. Instrumentation Overview.
2. Introduction to LabVIEW.
3. Data Sampling.
4. Time Constant.
5. Stress and Strain.
6. Transducer Sensitivity (Part 1)
7. Transducer Sensitivity (Part 2) and Linearity
8. Pressure Transducer Calibration and Jet Profile
9. Thermocouples: Calibration and Manufacturing
What you should know being Engineer
• Selection of DAQ system for an application
• Selection of sensors
• Limitations of the System
• Alternative Solutions
Introduction to TAs and Lab. Technicians.
??
References
• www.ni.com
• Using the oscilloscope
http://www.doctronics.co.uk/scope.htm

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