06EE35 - Electrical Measurement Regulation 2006 - 2007 |
PART – A |
UNIT – I |
(a) Units and Dimensions |
Review of fundamental and derived units. S.I. units. Dimensional equations, problems |
(b) Measurement of Resistance, Inductance, and Capacitance |
Wheatstone’s bridge — sensitivity analysis, limitations. Kelvin’s double bridge. |
UNIT – II |
Earth resistance measurement using Megger. Measurement of earth
resistance by fall of potential method. Anderson’s bridge. Schering bridge.
Sources and detectors, Schielding of bridges. |
UNIT – III Extension of Instrument Ranges. |
Shunts and multipliers. Construction and
theory of instrument transformers, Equations for ratio and phase angle errors
of C.T. and P.T (derivations excluded). Turns compensation, illustrative
examples (excluding problems on turns compensation). |
UNIT - VI Measurement of Power and Related Parameters |
Dynamometer
wattmeter. LPF wattmeter. Measurement of real and reactive power in threephase
circuits. Induction type energy meter — construction, theory, errors,
adjustments and calibration. Principle of working of electronic energy meter. |
PART – B |
UNIT – V |
(a) |
Construction and operation of electro-dynamometer single-phase power
factor meter. Weston frequency meter and phase sequence indicator. |
(b) Electronic Instruments |
Introduction. True RMS responding voltmeter.
Electronic multimeters. Digital voltmeters. |
UNIT – VI |
Dual trace oscilloscope — front panel details of a typical dual trace
oscilloscope. Method of measuring amplitude, phase, frequency, period. Use
of Lissajous patterns. Working of a digital storage oscilloscope.
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UNIT – VII Transducers |
Classification and selection of transducers. Strain gauges.
LVDT. Temperature measurements. Photo conductive and photo-voltaic
cells.
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UNIT – VIII |
(a) |
Interfacing resistive transducers to electronic circuits. Introduction to
data acquisition systems.
|
(b) Display Devices and Signal Generators |
X-Y recorders. Nixie tubes.
LCD and LED displays. Signal generators and function generators.
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REFERENCE |
TEXT BOOKS: |
1. “Electrical and Electronic Measurements and Instrumentation”, A. K. Sawhney, Dhanpatrai and Sons, New Delhi.
2. “Modern Electronic Instrumentation and Measuring Techniques”, Cooper D. and A.D. Heifrick, P.H.I.
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Reference Books |
1. “Electrical Measurements and Measuring Instruments”,
Golding and Widdies, Pitman.
2. “Electronic Instrumentation and Measurement”, David A. Bell,
2nd Edition, P.H.I., 2006.
3. “Analysis of Linear Systems”, David K. Cheng, Narosa Publishing House, 11th reprint, 2002.
4. “Electric Measurements”, Harris, John Wiley.
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