JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• To understand Static and Dynamic Characteristics of Measuring Systems
• To learn the concepts of various measuring devices to measure physical parameters like displacement, temperature, pressure, flow.
• To learn the concepts of transducers for measuring acceleration, velocity, force, torque etc.

Course Outcomes

On successful completion of this course the student will be able to;

• Identify suitable sensors and transducers for real time applications.
• Translate theoretical concepts into working models.
• Design the experimental applications to engineering modules and practices.
• Design engineering solution to the Industry/Society needs and develop products.

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.

UNIT - II

Measuring Devices Displacement and Temperature Displacement Resistive Potentiometer, Resistive strain gauges inductive displacement transducer, Capacitive Displacement Transducers, Piezo Electric Transducers, Ultrasonic Methods. Temperature Thermal expansion methods, Thermo electric, radiation methods thermal and photon detectors-based thermometers. Measuring Devices Pressure and Flow 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.

UNIT - III

Measuring Devices 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 - IV

Measuring Devices Humidity, Density and Radiation Capacitive, Impedance and Piezoelectric Hygrometers Differential Pressure, U-tube and ultrasonic Densitometers, pH measurement- Ion Selective Type; Viscosity Measurement; Radiation Detectors - Radiation Thermometers and Optical Pyrometers.

UNIT - V

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.

R19 M.TECH EIE

TEXT BOOKS:

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

REFERENCES:

• 1. Instrument transducers, H.K. P Neubert, Oxford University Press.
• 2. Process Measurement and Analysis, B.G. Liptak, ISA Publication 4th edition
• 3. A Text Book of Mechanical Measurements and Instrumentation, A.K. Sawhney.
• 4. Mechanical Measurements, E. O. Doeblin, Mc-Graw Hill Publication.
• 5. Transducer Engineering, Ranganathan. S, Allied Publishers. R19 M.TECH EIE M.TECH.- I YEAR- I SEMESTER ELECTRONICS AND INSTRUMENTATION ENGINEERING