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Laboratory 7 Introduction to LabVIEW

Laboratory 7 Introduction to LabVIEW. General Engineering Department Polytechnic University. Overview. Applications in EG101 Sample interfaces Remote Communication Graphic-based/Text-based Virtual Instruments (VIs) Front Panel/Diagram Panel Tools Front Panel Controls

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Laboratory 7 Introduction to LabVIEW

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  1. Laboratory 7Introduction to LabVIEW General Engineering Department Polytechnic University

  2. Overview • Applications in EG101 • Sample interfaces • Remote Communication • Graphic-based/Text-based • Virtual Instruments (VIs) • Front Panel/Diagram Panel • Tools • Front Panel Controls • Controls and Indicators • Color Representation • Objectives • Program 1: Calculator • Program 2: Voltmeter • LabVIEW Proficiency Test • Conclusion

  3. Without LabVIEW

  4. With LabVIEW

  5. Applications in EG101 • LAB 3: Microphone • LAB 7: LabVIEW • LAB 8: Vibrations, Waves and Spectra • LAB 10: Fiber Optics • TimeFreq • TwoChan • Filter • Record • Playback

  6. Sample Interfaces

  7. Remote Communication • Internet • Control Devices • Robotic Arm • Bridge

  8. Graphics-based vs. Text-based G C++

  9. Virtual Instruments (VIs) Appearance and operation imitates actual physical instruments

  10. Front Panel and Diagram Panel

  11. Tools

  12. Front Panel Controls Terminal in diagram panel represents front panel object in source code

  13. Controls and Indicators Two types of objects in front panel

  14. Color Representation

  15. Objectives • Learn basic, introductory commands • Input data (voltage) • Create two programs

  16. Program 1: Calculator • Input • Keyboard • Input/Output board • Switch: 3 operations • 3 LEDs • 2 numeric controls • 1 indicator • Switch for input data • Case statement

  17. Program 2: Voltmeter • Input from I/O block (±5 volts) • 7 LEDs: 7-segment display rounded to nearest integer • 1 negative sign LED • Case statement: control different combinations

  18. LabVIEW Proficiency Test • 25-segment LED display with corresponding cases • 2 switches • binary-to-decimal • decimal-to-binary (inoperative) • Control • Warning function First 5 non-repeating letters and #s of name (last, first) and ID

  19. Conclusions • Advantages • Saves money/space • Unlimited customized applications • More help • LabVIEW manuals • Help Team report Include: • Front/Diagram panels of both programs • Brief written explanations of implementation

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