UNIVERSITY OF MADRAS
B.Sc. DEGREE COURSE IN ELECTRONICS SCIENCE
SEMESTER SYSTEM WITH CREDITS
(Effective from the Academic Year 2003-2004)

Semester VI - Paper XVI - Electrical and Electronic Instrumentation

Duration: 4 hrs
Maximum Marks: 100
Credits: 4

Unit-1

DC indicating Instruments: PMMC Galvanometer (D'Arsonal Movement ) - Principle, Construction and Working - Current Sensitivity, Voltage Sensitivity & Megohm Sensitivity - Advantages and Disadvantages - Conversion of Galvanometer into Ammeter, Voltmeter and Ohmmeter (Series and Shunt Types) - Multimeter - Loading Effect.
AC indicating Instruments: Electrodynamometer - Principle, Construction and Working - Merits and Demerits - Rectifier Type Instruments - Thermocouple Instruments (Contact & Non-contact types) - Electrostatic Voltmeters - Principle, Construction and Working - Watt-hour Meter.

Unit

DC Bridges: Wheatstone Bridge - Determination of resistance - Kelvin Double Bridge - Determination of resistance.
AC Bridges: Maxwell's Bridge - Determination of Self-Inductance - Wien's Bridge - Determination of Frequency - Schering' s Bridge - Determination of Capacitance.

Unit-3

Oscilloscopes: Block Diagram - Deflection Sensitivity - Electrostatic Deflection - Electrostatic Focusing - CRT Screen - Measurement of Waveform .frequency, Phase difference and Time Intervals - Sampling Oscilloscope - Storage Oscilloscopes.

Unit-4

Instrumentation Amplifiers and Signal Analyser: Instrumentation amplifier- Electronic Voltmeter - Electronic Multimeter - Digital Voltmeter - Ohm meter - Function Generator - Wave analyser - Fundamentals of Spectrum Analyser.

Unit-5

Transducers and Display Devices: Strain Gauge - Unbonded Strain Gauge - LVDT - Resistance Thermometer - Thermocouple - Photoelectric Transducer - Pen Recorder - Audio Tape Recorder - Seven Segment Display - LCD.

Books for Study and Reference