JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Virtual Instrumentation: An Introduction: Historical perspective, Advantages, Block Diagram and Architecture of Virtual Instrument, Data-Flow Techniques, Graphical Programming in data flow, Comparison with convectional programming, Development of Virtual Instrumentation 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. DC, 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 and 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.

TEXTBOOKS:

• 1. Gary Johnson, “Lab VIEW Graphical Programming”, Second Edition, McGraw Hill, Newyork, 1997.
• 2. S. Sumathi and P. Surekha, “Lab VIEW based Advanced Instrumentation Systems”, Springer.

REFERENCES:

• 1. Kevin James, “PC Interfacing and Data Acquisition: Techniques for Measurement, Instrumentation and Control”, Newnes, 2000.
• 2. Lisa K. Wells & Jeffrey Travis, “Lab VIEW for everyone”, Prentice Hall, New Jersey, 1999.
• 3. WEB RESOURCES: www.ni.com M. TECH. I YEAR II SEMESTER DIGITAL SYSTEMS & COMPUTER ELECTRONICS