Measurements:
Introduction, Significance of measurements, methods of measurements, instruments and measurement systems, Functions of instruments and measurement systems, Applications of measurement systems.(Verify)
Measurement Errors:
Introduction Gross errors and systematic errors, Absolute and relative errors, basic concepts of accuracy, Precision, Resolution and Significant figures, Measurement error combinations. (relevant problems)
Ammeters, Voltmeter and Multimeters:
Introduction, DC ammeter principle only, DC voltmeter, Multi-range voltmeter, Extending voltmeter ranges, Loading, Peak responding and True RMS voltmeters. (relevant problems)
Digital Voltmeters:
Introduction, Ramp type, Dual slope integrating type (V–T), integrating type (V–F) and Successive approximation type (relevant problems).
Digital Instruments:
Introduction, Block diagram of a Basic Digital Multi-meter. Digital frequency meters: Basic circuit of a Digital frequency meter, Basic circuit for frequency measurement.
Oscilloscopes:
Introduction, Basic principles, CRT features, Block diagram and working of each block, Typical CRT connections, Dual beam and dual trace CROs, Electronic switch.
Analog storage oscilloscopes:
Need for trace storage, bistable storage CRT, Variable persistence storage CRT.
Digital storage oscilloscopes:
Basic DSO operation only.
Signal Generators :
Introduction, Fixed and variable AF oscillator, Standard signal generator, Modern laboratory signal generator, AF sine and Square wave generator, Function generator, Square and Pulse generator.
Bridge Circuits for Measurement of R, L & C:
DC bridges:
Introduction, Wheatstone bridge, Kelvin Bridge
AC bridges:
Capacitance Comparison Bridge, inductance Comparison Bridge, Maxwell’s bridge, Schering Bridge. (relevant problems).
Display Devices and Recorders:
Introduction, electrical indicating instruments, digital instruments, digital display methods, digital display unit. Segmental Displays: Seven segmental display, dot matrices, LED, LCD, decade counting assemblies, display systems. Recorders: Recording requirements, analog recorders- Graphic recorders, strip chart recorders & its types, X-Y recorder, Magnetic & Digital tape recorders.
Course Outcomes:
After studying this course, students will able to:
• Analyze instrument characteristics, errors and generalized measurement system.
• Analyze and use the circuit for the measurement of R, L, C, F, I, V etc
• Use of Ammeters, Voltmeter and Multimeters and CRO for measurement
• Analyze and interpret different signal generator circuits for the generation of various waveforms
• Understand and use different display devices and recorders
Question Paper Pattern:
• The question paper will have TEN questions.
• Each full question carry 20 marks
• There will be TWO full questions (with maximum of THREE sub questions) from each module.
• Each full question will have sub questions covering all the topics under a module.
• The students will have to answer FIVE full questions, selecting ONE full question from each module.
Textbooks:
1. “Electronic Instrumentation”, H. S. Kalsi, TMH, 2004 (Module- 2,3 & 4)
2. “Electronic Instrumentation and Measurements”, David A Bell, PHI / Pearson Education2006/ Oxford Higher Education, 2013. (Module 1 & 3)
3. Electrical and Electronic Measurements and Instrumentation – A. K. Sawhney, 17th Edition (Reprint 2004), Dhanpat Rai & Co. Pvt. Ltd., 2004.(Module- 1 & 5)
Reference Books:
1. “Principles of Measurement Systems”, John P. Beately, 3rd Edition, Pearson Education, 2000
2. “Modern Electronic Instrumentation and Measuring Techniques”, Cooper D & A D Helfrick, PHI, 1998.