JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

BM724PE: VIRTUAL INSTRUMENTATION

B.Tech IV Year I Semester (R16)

Course Objectives

To introduce LABVIEW programming and simulation of real time

applications like instrument control, Signal processing, image processing, Data acquisition etc.,

Course Outcomes

Upon completion of this course the student shall be able to develop their

own GSD and interface them with real world instruments.

UNIT - I

Virtual Instrumentation: An introduction Historical perspective, advantages, block diagram and architecture of a virtual instrument, data-flow techniques, graphical programming in data flow, comparison with conventional programming. Development of Virtual Instrument using GUI, Real-time systems.

UNIT - II

VI programming techniques: VIs and sub-VIs, loops and charts, arrays, clusters and graphs, case and sequence structures, formula nodes, local and global variables, string and file I/O, Instrument Drivers, Publishing measurement data in the web.

UNIT - III

Data acquisition basics: Introduction to data acquisition on PC, Sampling fundamentals, Input/output techniques, and buses. ADC, DAC, Digital I/O, counters and timers, DMA, Software and hardware installation, Calibration, Resolution, Data acquisition interface requirements.

UNIT - IV

VI Interface requirements: Common Instrument Interfaces: Current loop, RS 232C/ RS485, GPIB. Bus Interfaces: USB, PCMCIA, VXI, SCSI, PCI, PXI, Firewire. PXI system controllers, Ethernet control of PXI. Networking basics for office & Industrial applications, VISA and IVI.

UNIT - V

VI toolsets: Distributed I/O modules. Application of Virtual Instrumentation: Instrument Control, Development of process database management system, Simulation of systems using VI, Development of Control system, Industrial Communication, Image acquisition and processing, Motion control.

R16 B.TECH BIOMEDICAL ENGG.

TEXTBOOKS:

  • 1. LabVIEW Graphical Programming, Gary Johnson, Second edition, McGraw Hill, Newyork, 1997.
  • 2. LabVIEW based Advanced Instrumentation Systems, S. Sumathi and P. Surekha, Spinger.

REFERENCE BOOKS:

  • 1. PC Interfacing and Data Acquisition: Techniques for Measurement, Instrumentation and Control, Kevin James, Newnes, 2000.
  • 2. WEB RESOURCES: www.ni.com
  • 3. LabVIEW for everyone, Lisa K. wells & Jeffrey Travis Prentice Hall, New Jersey, 1997. R16 B.TECH BIOMEDICAL ENGG.

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