B tech Electrical & Electronics Engineering, VI-Semester Open Elective EX- 604 (A) Electronic Instrumentation

 RAJIV GANDHI PROUDYOGIKI VISHWAVIDYALAYA, BHOPAL

New Scheme Based On AICTE Flexible Curricula

Electrical & Electronics Engineering, VI-Semester

 Open Elective EX- 604 (A) Electronic Instrumentation


www.mahendraeee.com


UNIT-I

Introduction to CRO, Different parts of CRO, Its Block diagram, Electrostatic focusing, 

Electrostatic deflection, post deflection acceleration, Screen for CRTs, Graticule, Vertical & 

Horizontal deflection system, Time base circuit, Oscilloscope probes and transducers, 

Attenuators, Application of CROs, Lissajous patterns, Special purpose CROs- Multi input, 

Dual trace, Dual beam, Sampling, Storage (Analog & Digital) Oscilloscopes.

UNIT-II

A.C. Bridge Measurement

Sources and detectors, Use of Bridges for measurement of inductance, Capacitance & Q 

factor Maxwells bridge, Maxwells inductance capacitance bridge, Hays bridge, Andersons 

bridge, Owen's Bridge, De-sauty's Bridge, Schering Bridge, High Voltage Schering bridge, 

Measurement of relative permittivity, Heaviside cambell's bridge, Weins bridge, Universal 

bridge, Sources of errors in Bridge circuit, Wagner's Earthing device, Q meter and its 

applications and measurement methods.

UNIT-III

Transducers

Transducers definition and classification, mechanical devices as primary detectors, 

Characteristic & choice of Transducers, Resistive inductive and capacitive transducers, strain 

gauge and gauge factor, Thermistor, Thermo couples, LVDT, RVDT, Synchros, PiezoElectric transducers, Magnet elastic and magneto strictive Hall effect transducers, Optoelectronic transducers such as photo voltaic, Photo conductive, photo diode and photo 

conductive cells, Photo transistors, Photo optic transducers. Introduction to analog& Digital 

data acquisition systems-Instrumentation systems used, Interfacing transducers to electronic 

control & measuring systems Multiplexing - D/A multiplexing A-D Multiplexing, Special 

encoders. Digital control description.

UNIT-IV

Signal Generators

Fixed & variable frequency AF oscillators, Sine wave generators, Standard signal generator, 

AF Sine and Square wave generator Function generator, Square and pulse generator, Random 

noise generator, Sweep generator, TV Sweep generator, Marker generator, Sweep- Marker 

generator, Wobblyscope, Video pattern generator Vectroscope, Beat frequency oscillator 

Wave analyser Basic wave analyzer, Frequency selective wave analyzer, Heterodyne wave 

analyzer, Harmonic distortion, analyzer, spectrum analyzer digital Fourier analyzer.

UNIT-V

Digital Instruments

Advantages of Digital instruments over analog instruments, resolution and sensitivity of 

Digital meters., Digital Voltmeter - Ramp type, Dual slope integration type, Integrating type, 

Successive approximation type, Continuous balance DVM or Servo balancing potentiometer 

type DVM. , compression of Electronic & Digital Volt meter, Digital Multimeter, Digital 

frequency meter, Time period measurement, High frequency measurement, Electronic 

counter, Digital tachometer, Digital PH meter, Digital phase meter, Digital capacitance meter. 

Digital display system and indicators like CRT, LED, LCD, Nixies, Electro luminescent, 

Incandescent, Electrophoretic image display, Liquid vapour display dot-matrix display, 

Analog recorders, X-Y recorders. Instruments used in computer-controlled instrumentation 

RS 232C and IEEE 488, GPIB electric interface.

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