JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Note

No detailed mathematical treatment is required.

Course Objectives:

• It provides an understanding of various measuring systems functioning and metrics for performance analysis.
• Provides understanding of principle of operation, working of different electronic instruments viz. signal generators, signal analyzers, recorders and measuring equipment.
• Provides understanding of use of various measuring techniques for measurement of different physical parameters using different classes of transducers.

Course Outcomes

On completion of this course student can be able to

• Identify the various electronic instruments based on their specifications for carrying out a particular task of measurement.
• Measure various physical parameters by appropriately selecting the transducers.
• Use various types of signal generators, signal analyzers for generating and analyzing various real-time signals.

UNIT - I

Block Schematics of Measuring Systems and Performance Metrics: Performance Characteristics, Static Characteristics, Accuracy, Precision, Resolution, Types of Errors, Gaussian Error, Root Sum Squares formula, Dynamic Characteristics, Repeatability, Reproducibility, Fidelity, Lag.

UNIT - II

Signal Generators: AF, RF Signal Generators, Sweep Frequency Generators, Pulse and Square wave Generators, Function Generators, Arbitrary Waveform Generator, and Specifications.

UNIT - III

Measuring Instruments: DC Voltmeters, D’ Arsonval Movement, DC Current Meters, AC Voltmeters and Current Meters, Ohmmeters, Multimeters, Meter Protection, Extension of Range, True RMS Responding Voltmeters, Specifications of Instruments. CRT, Block Schematic of CRO, Time Base Circuits, Lissajous Figures, CRO Probes.

R16 B.TECH AERONAUTICAL ENGG.

UNIT - IV

Recorders: X-Y Plotter, Curve tracer, Galvanometric Recorders, Servo transducers, pen driving mechanisms, Magnetic Recording, Magnetic recording techniques.

UNIT - V

Transducers: Classification, Strain Gauges, Bounded, unbounded; Force and Displacement Transducers, Resistance Thermometers, Hotwire Anemometers, LVDT, Thermocouples, Synchros, Special Resistance Thermometers, Digital Temperature sensing system, Piezoelectric Transducers, Variable Capacitance Transducers, Magneto Strictive Transducers.

TEXT BOOKS:

• 1. Electronic Measurements and Instrumentation: B.M. Oliver, J.M. Cage TMH Reprint 2009.
• 2. Electronic Instrumentation: H.S.Kalsi – TMH, 2nd Edition 2004.

REFERENCES:

• 1. Electronic Instrumentation and Measurements – David A. Bell, Oxford Univ. Press, 1997.
• 2. Modern Electronic Instrumentation and Measurement Techniques: A.D. Helbincs, W.D. Cooper: PHI 5th Edition 2003.
• 3. Electronic Measurements and Instrumentation – K. Lal Kishore, Pearson Education 2010.
• 4. Industrial Instrumentation: T.R. Padmanabham Springer 2009. R16 B.TECH AERONAUTICAL ENGG. B.TECH. ELECTRONICS AND COMPUTER ENGINEERING