JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objective

To provide basic knowledge in transduction principles, sensors,

transducer technology and measurement systems.

Course Outcome

Upon completion of this course the student shall be able to understand the

working of basic sensors and transducers used in any industries.

UNIT - I

Introduction to measurement systems: general concepts and terminology, measurement systems, sensor classification, general input-output configuration, methods of correction. static characteristics of measurement systems- accuracy, linearity, resolution, precision and sensitivity etc. estimation of errors. Standards. Definition of standard units. International standards. Primary standards. Secondary standards. Working standards. Voltage standard. Resistance standard. Current standard. Capacitance standard. Time and frequency standards.

UNIT - II

Dynamic characteristics: Transfer function, dynamic characteristics of measurement systems: zero-order, first-order, and second-order measurement systems and response

UNIT - III

Measuring devices: Temperature: Thermal expansion methods, Thermo electric, electrical resistance and semiconductor sensors. Radiation methods- thermal and photon detectors based thermometers. Measuring devices: Pressure: Methods of pressure measurement: Dead weight gauges and manometers, elastic transducers, vibrating cylinder and other resonant transducers. Testing of pressure measuring system. High pressure measurement.

UNIT - IV

Measuring devices: Vacuum and sound : Diaphragm, McLeod, Knudsen, viscosity, thermal conductivity and ionization gauges. Dual gauge techniques. Sound measurement. Measuring devices: Local Flow: Flow Visualization from Pitot –Static Tube, Yaw Tube, Pivoted Vane and Servoed Sphere, wind vector indicator, Anemometers, Velocity sensors.

UNIT - V

Measuring devices: Gross Volume Flow: Obstruction meters, averaging Pitot tubes, Rotameters, Turbine and Positive Displacement meters, electromagnetic, Drag force, Vortex shedding, Ultrasonic Flow meters.

TEXT BOOK:

• 1. Measurement System: Applications and Design – by E.O. Doeblin, D.N. Manik,5 th ed. McGraw Hill Publications.
• 2. Modern Electronic Instrumentation & Measurement Techniques: Albert D. Helfrick & William D. Cooper, PHI.

REFERENCES:

• 1. Sensor Technology Handbook – Jon Wilson, Newne 2004.
• 2. Introduction to measurements and Instrumentation– by Arun .K. Ghoshl, 2nd Edition, PHI, 2007.
• 3. Sensors and Transducers – D. Patranabis, TMH 2003.