JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Introduction to Measurement Systems: General concepts and terminology, Measurement systems, Sensor classification, Static characteristics of measurement systems-accuracy, Linearity, Resolution, Precision and sensitivity etc., Estimation of errors, Dynamic characteristics of measurement systems, Zero-order first-order and second-order measurement systems and response. Metrology: Measurement of length, Plainness, Area, Diameter, Roughness, Angle, Comparators, Gauge blocks, Optical Methods for length and distance measurements.

UNIT - II

Measuring Devices-I: Displacement: Resistive Potentiometer, Resistive strain gauges, Inductive displacement transducer, Capacitive Displacement Transducers, Piezo Electric Transducers, Ultrasonic Methods. Temperature: Thermal expansion methods, Fundamentals-Radiation Detectors, Radiation Thermometers, Optical Pyrometers, Force Measurement: Force measurement, Different methods, Gyroscopic Force Measurement, Vibrating wire Force transducer

UNIT - III

Measuring Devices-II: Pressure: Methods of pressure measurement- Dead weight gauges and manometers, Elastic transducers, High pressure measurement. Flow: Anemometers, Velocity sensors, Obstruction meters, Averaging Pitot tubes, Rota meters, Electromagnetic, Vortex shedding, Ultrasonic Flow meters. Viscosity: Units of Viscosity, Specific gravity scales used in Petroleum Industries, Different Methods of measuring consistency and Viscosity, Two float viscorator, Industrial consistency meter.

UNIT - IV

Measuring Devices-III: Velocity and Acceleration: Seismic displacement, Velocity and acceleration pickups (Accelerometers), Gyroscopic angular displacement and velocity sensors. Force and Torque: Methods of force measurement and characteristics, bonded strain gauge, Variable Reluctance, Piezo Electric Transducer, Torque measuring on rotating shafts.

UNIT - V

Measuring Devices-IV: Humidity, Density and Sound Measurement: Capacitive Impedance and Piezoelectric Hygrometers, Differential Pressure, U-tube and ultrasonic Densitometers, pH measurement- Ion Selective Type, Sound-Level Meters, Microphones, Particle Instruments and Clean-Room Digital Sensors: Position encodes, Variable frequency sensors, Quartz digital thermometer, SAW sensors, Digital flow meters, Sensors based on semiconductor junctions, Thermometers based on semiconductor junctions, Magneto diodes and magneto transistors, Photodiodes and phototransistors, Charge-coupled sensors.

TEXT BOOKS:

• 1. E.O. Doeblin, “Measurement Systems”, McGraw Hill Publication.
• 2. D.V.S. Murthy, “Transducers and Instrumentation”, PHI Publication.
• 3. D. Patranbis, “Sensors & Transducers”, Wheeler Publishing.

REFERENCE BOOKS:

• 1. Patranabis D, “Principles of Industrial Instrumentation”, TMH, Edition, 1997
• 2. H.K.P Neubert, “Instrument transducers”, Oxford University Press. th
• 3. B.G. Liptak, “Process Measurement and Analysis”, ISA Publication 4 Edition.
• 4. Jon S. Wilson, “Sensor Technology Handbook”, Elsevier Publications.
• 5. A.K. Sawhney, “A Course in Mechanical Measurements and Instrumentation”, 2005, Dhanpat Rai M. TECH. I YEAR I SEMESTER ELECTRONICS & INSTRUMENTATION