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Note for ELectronic Measurement and Instrumentation - EMI by k praveen

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Kotireddy Praveen Kumar Reddy
Kotireddy Praveen Kumar Reddy
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DEPARTMENT OF ECE ELECTRONIC MEASUREMENTS & INSTRUMENTATION LECTURE NOTES ON ELECTRONIC MEASUREMENTS & INSTRUMENTION (2019 – 2020) III B. Tech I Semester (17CA04504) Mrs.M.Jahnavi, Assistant Professor CHADALAWADA RAMANAMMA ENGINEERING COLLEGE (AUTONOMOUS) Chadalawada Nagar, Renigunta Road, Tirupati – 517 506 Department of Electronics and Communication Engineering Page 1

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DEPARTMENT OF ECE ELECTRONIC MEASUREMENTS & INSTRUMENTATION SYLLABUS UNIT-I Introduction, Performance characteristics of Instruments, Static characteristics, Accuracy, resolution, precision, Sensitivity, Dynamic characteristics: Repeatability, Reproducibility, fidelity, lag, Static and Dynamic Errors. Analog measuring instruments: D'Arsonval movement, DC voltmeters and ammeter, AC voltmeters and current meters, ohmmeters, multimeters, meter protection, extension of range. UNIT-II Oscilloscopes: Block Diagram of CRO, CRT features, Time base circuits, Derivation of Deflection sensitivity, delay lines, high frequency CRO considerations, applications, specifications, CRO probes. Special purpose oscilloscopes: Dual trace, Dual beam CRO, Sampling oscilloscopes, Storage oscilloscopes, Digital storage CRO. Applications of CROs: Lissajous figures, frequency measurement, phase measurement, Digital frequency counters, Time and Period measurements. UNIT-III Signal generator-fixed and variable, AF oscillators, function generators, pulse, random noise, sweep, and arbitrary waveform generators, their standards, specifications and principles of working (Block diagram approach).Wave analyzers, Harmonic distortion analyzers, Spectrum analyzers, and Logic analyzers UNIT-IV Review of DC Bridges: Wheatstone bridge, Wein Bridge, errors and precautions in using bridges, AC bridges: Measurement of inductance-Maxwell’s bridge, Anderson Bridge. Measurement of capacitance- Schearing Bridge. Kelvin Bridge, Q-meter, EMI and EMC, Interference and noise reduction techniques. UNIT-V Active and passive transducers: Measurement of displacement (Resistance, capacitance, inductance, LVDT) Force (strain gauges) Pressure (piezoelectric transducers) Temperature (resistance thermometers, thermocouples, and thermistors), Velocity, Acceleration, Vibration, pH measurement Signal Conditioning Circuits . \ Page 3

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DEPARTMENT OF ECE ELECTRONIC MEASUREMENTS & INSTRUMENTATION \ TEXT BOOKS: 1. 2. H.S.Kalsi, “Electronic instrumentation”, second edition, Tata McGraw Hill, 2004. A.D. Helfrick and W.D. Cooper, “Modern Electronic Instrumentation and Measurement Techniques”, PHI, 5th Edition, 2002. REFERENCES: David A. Bell, “Electronic Instrumentation & Measurements”, PHI, 2nd Edition, 2003 Ernest O Doebelin and Dhanesh N Manik, “Measurement Systems Application and Design”, TMH, 5th Edition, 2009. 3. Oliver and Cage, “Electronic Measurement and Instrumentation”, TMH. 4. Robert A.Witte, “Electronic Test Instruments, Analog and Digital nd Measurements”, Pearson Education, 2 Ed., 2004. 1. 2. Page 4

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