Basic Instrumentation
IE203 BASIC INSTRUMENTATIONﾂ
Objectives:
1. To understand static and dynamic characteristics of systems
2. To understand measuring principles for A.C. and D.C. bridges.
3. To understand measuring principles of Analog Instruments.
4. To understand Principle of Recorders and Potentiometers
Unit I:
Static and dynamic characteristics of instruments, Types of errors and their remedies, data types, statistical treatment of experimental data, system accuracy calculations, Comparison of Analog and Digital Instruments. Instrument specification, terminology and performance as per ISA standards
[08Hrs]
Unit II:
C Bridges: Whetstone bridge-design, arrangement of ratio arms, bridge sensitivity, errors in bridge circuits, null type and deflection type, current and voltage sensitivity bridges, Null, Sensitivity and Calibration adjustments of whetstones bridge, Kelvin bridge and current balance bridge, Various application of DC bridges.
[08Hrs]
Unit III:
AC Bridges: Inductive bridge (Maxwell窶冱), Capacitance bridge(Hey窶冱), Wein窶冱 bridge, Schering bridge, storage and dissipation factors, offset voltage of unbalanced AC bridge, Various applications of AC Bridges.
[09Hrs]
Unit IV:
Measuring instruments: Galvanometer, ammeter, voltmeter, ohmmeter-series and shunt, multimeter, calibration of meters.
Resonance- Series and parallel, Voltage, Current, Impedance and Phase angle analysis of series and parallel resonance, Tank circuit and various applications.
[09Hrs]
Unit V:
Electronic techniques for measurement of current, voltage, phase, energy and power
Potentiometers: Principles, Calibration, sensitivity of potentiometers, multi-range potentiometers, Instrument transformers-CT and PT, insulation testing.
[09Hrs]
Unit VI:
Recorders: Rectilinear recording, ink jet, ink pen, thermal, galvanometric recording, paperless, oscillographic, y-t, x-t, single and multi-channel recorders, driving systems for pen and chart, chart speed and their applications.
[08Hrs]
Text Books:
1. Electrical and Electronics measurements and Instrumentation by A. K. sawhney, Danpat Rai and Sons.
2. Electronic Instrumentation Techniques by Cooper and Helfrick, PHI
Reference Books:
1. Electronic Instruments and Measurement by Jones and Chins
2. Network Theory by A Sudhakar and S. S. Palli, TMH
