EC2351 MEASUREMENTS AND INSTRUMENTATION Lecture Notes for ECE - Sixth (6th) Semester ...
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EC2351 Lecture Notes
UNIT I BASIC MEASUREMENT CONCEPTS
Measurement systems – Static and dynamic characteristics – units and standards of
measurements – error :- accuracy and precision, types, statistical analysis – moving coil,
moving iron meters – multimeters – Bridge measurements : – Maxwell, Hay, Schering,
Anderson and Wien bridge.
UNIT II BASIC ELECTRONIC MEASUREMENTS
Electronic multimeters – Cathode ray oscilloscopes – block schematic – applications –
special oscilloscopes :– delayed time base oscilloscopes, analog and digital storage
oscilloscope, sampling oscilloscope – Q meters – Vector meters – RF voltage and
power measurements – True RMS meters.
UNIT III SIGNAL GENERATORS AND ANALYZERS
Function generators – pulse and square wave generators, RF signal generators –
Sweep generators – Frequency synthesizer – wave analyzer – Harmonic distortion
analyzer – spectrum analyzer :- digital spectrum analyzer, Vector Network Analyzer –
Digital L,C,R measurements, Digital RLC meters.
UNIT IV DIGITAL INSTRUMENTS
Comparison of analog and digital techniques – digital voltmeter – multimeters –
frequency counters – measurement of frequency and time interval – extension of
frequency range – Automation in digital instruments, Automatic polarity indication,
automatic ranging, automatic zeroing, fully automatic digital instruments, Computer
controlled test systems, Virtual instruments.
UNIT V DATA ACQUISITION SYSTEMS AND FIBER OPTIC MEASUREMENT
Elements of a digital data acquisition system – interfacing of transducers – multiplexing –
data loggers –computer controlled instrumentation – IEEE 488 bus – fiber optic
measurements for power and system loss – optical time domains reflectometer.
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