|
|||||||
|
|
|
|||||
|
|
|||||||
98.702 ELECTRONIC INSTRUMENTS AND MEASUREMENTS (T) 3-1-0
Module I
Generalised
approach to measurement quantities and instruments.
Introduction : Classification of variables and analogies : generalised approach
to a measuring system .Performance characteristics of instruments : analysis of
errors : units
Transducers and Display devices
Introduction : Passive transducers : Active transducers : Resistive, Inductive,
capacitive types:
Electromagnetic, thermoelectric, photovoltaic and piezoelectric transducers :
Digital transducers .
Theory of LED, LCD, EPID display devices and applications
Signal Conditioning and Conversion
Introduction : Transducer bridges : Instrumentation amplifiers : analog and
digital data sampling
Interference, screens and shielding, signal recovery, filtering to remove noise
lock in amplifiers.
Module II
Signal generators - block schematics
and principles of operation of audio generators : function generators, Pulse
generators, RF generators, Frequency Synthesisers.
Digital Instruments - Frequency counters: Period counters, Counting errors,
digital voltmeters, auto ranging, Digital LCR meters
Power Meters - Block schematic and principles of operation of AF power meter, RF
power Microwave power meter, VSWR meter, Measurement using above meters.
Module III Cathode Ray Oscilloscope - The cathode ray tube deflection amplifier - wave form display, oscilloscope time base - automatic time base, dual trace oscilloscope, dual beam & split beam CRTs. Oscilloscope controls, measurement of voltage, frequency and phase. Lissajous figures. Pulse measurements : Oscilloscope probe, Special Oscilloscopes: Delayed time base oscilloscope and controls, analog storage oscilloscope, storage oscilloscope controls, sampling oscilloscopes, digital storage oscilloscope: A/D conversion, storage, digital memory, D/A conversion, Recovery from memory and digital oscilloscopes, principles of operation of spectrum analysers, Logic state analysers.
Text Books : -
Module I, Module II & III :
Ref (1) & (2) Ref (3)
References : -
1. Jones, Barry E., Instrumentation:
Measurement & Feedback, TataMcGraw Hill, New Delhi.
2. Doebelin. Measurement Systems: Application & Design, Mc Graw Hill, New
York.
3. David A.Bell. Electronics Instrumentation and Measurement, Ruston Publishing.
Co. Inc
4. Oliver B.M. & Cage J.M. Electronic Measurements and Instrumentation, Mc
Graw Hill, New York.
5. B.C Nakra. Instrumentation Measurement & Analysis, TataMcGraw Hill, New
Delhi.
Question Paper : -
The question paper will consist of two parts. Part I is to cover the entire syllabus, and carries 40 marks. This will contain 10 compulsory questions of 4 marks each. Part II is to cover 3 modules, and carries 60 marks. There will be 3 questions from each module (10 marks each) out of which 2 are to be answered.