CHHATISGARH SWAMI VIVEKANAND TECHNICAL UNIVERSITY, BHILAI (C.G.)
Semester: 5th Branch: Electrical and
Electrical & Electronics
Subject: Electronic Instrumentation Code: 324512 (24)
Total Theory Periods: 40
Total Marks in End Semester Exam: 80
Minimum number of Class tests to be conducted: 2
UNIT I: Digital electronic instrumentsIntroduction, specifications of digital meters, resolution, sensitivity, accuracy, average/true root mean
square, crest factor, form factor, normal mode rejection ratio, common mode rejection ratio, effective
common rejection ration, zero or offset frequency response, input resistance, input bias current. Digital
voltmeters, Ramp technique, dual slope integrating type DVM, digital frequency meters, digital multimeters,
digital tachometer, digital pH meter, digital phase meter, digital capacitance meter.
UNIT II: Transducers
Passive and active electrical transducers: resistive, capacitive, inductive, piezoelectric, photovoltaic, Hall
effect transducers, selection of transducers, transducers characteristics, semiconductor photo-diode, photo
transistor, frequency generating transducers, pressure inductive transducers, LVDT, differential output
transducer, thermistor, strain gauge, measurement of angular and linear velocity using electrical
transducers, reluctance pulse pick-ups, AC tachogenerators.
UNIT III: Data acquisition system (DAS) and recorders
Introduction of DAS, objective of DAS, signal conditioning of inputs, single and multi-channel DAS,
computer based DAS, sample and hold, multiplexing, D/A, A/D conversion, general description of Data
loggers, digital transducers, optical encoders, resistive digital encoders, shaft encoders.
Recorders: introduction, Strip chart recorders, general description of XY recorders, galvanometer type
recorders, potentiometric recorders.
UNIT IV: Oscilloscope & Signal Generations
Introduction, Basic Principal, CRT Feature, Block diagram of oscilloscope, simple CRO, Vertical amplifier,
horizontal defecting system Triggered source CRO, typical CRT connection, measurement of Frequency &
phase by Lissajous Figures, types of Probes, Passive & active voltage probes, Current probes, logic
probes, Optical probes.
Signal generator: Introduction, sine wave generators, audio Frequency and Radio frequency signal
generation, Function generators, Sequence & phase generators
UNIT V: PLC & Distributed control system (DCS)
PLC: Introduction of PLC, PLC structure & operations response time, Basic ladder diagram, PLC resisters,
Timer & counters, PLC, DC & AC i/ps. Module for PLC, Basic Process of PLC, PLC Hard wear &
Configuration PLC hard ware components.
DCS: Introduction, advantage & Disadvantage of DCS techniques, system Configuration, DCS Process
Control.
