Get to know the methods of measurement, classification of transducers and to analyze error.
To understand the behavior of transducers under static and dynamic conditions and hence to model the transducer.
Get exposed to different types of resistive transducers and their application areas.
To acquire knowledge on capacitive and inductive transducers.
To gain knowledge on variety of transducers and get introduced to MEMS and Smart transducers.
UNIT I SCIENCE OF MEASUREMENTS AND CLASSIFICATION OF TRANSDUCERS 9
Units and standards – Static calibration – Classification of errors, Limiting error and probable error – Error analysis – Statistical methods – Odds and uncertainty – Classification of transducers – Selection of transducers.
UNIT II CHARACTERISTICS OF TRANSDUCERS 9
Static characteristics: – Accuracy, precision, resolution, sensitivity, linearity, span and range. Dynamic characteristics: Mathematical model of transducer, Zero, I and II order transducers, Response to impulse, step, ramp and sinusoidal inputs.
UNIT III VARIABLE RESISTANCE TRANSDUCERS 9
Principle of operation, construction details, characteristics and applications of potentiometer, strain gauge, resistance thermometer, Thermistor, hot-wire anemometer, piezo-resistive sensor and humidity sensor.
UNIT IV VARIABLE INDUCTANCE AND VARIABLE CAPACITANCE TRANSDUCERS 9
Inductive transducers: – Principle of operation, construction details, characteristics and applications of LVDT, Induction potentiometer – Variable reluctance transducers – Synchros – Microsyn – Principle
of operation, construction details, characteristics of capacitive transducers – Different types & Signal Conditioning – Applications:- Capacitor microphone, Capacitive pressure sensor, Proximity sensor.
UNIT V OTHER TRANSDUCERS 9
Piezoelectric transducer – Hall Effect transducer – Magneto elastic sensor – Digital transducers – Fiber optic sensors – Thick & Thin Film sensors (Bio sensor & Chemical Sensor) – Environmental Monitoring sensors (Water Quality & Air pollution) – Introduction to MEMS – Introduction to Smart
transducers and its interface standard (IEEE 1451).
TOTAL: 45 PERIODS
At the end of the course, the student should have the ability:
- Ability to apply the mathematical knowledge and science & engineering fundamentals
gained to solve problems pertaining to measurement applications.
- Ability to analyze the problems related to sensors & transducers.
- Ability to select the right sensor/transducer for a given application.
- Ability to determine the static and dynamic characteristics of transducers using software packages.
- Ability to understand fiber optic sensor and applications.
- Ability to understand smart traducer and its standard.
- Doebelin E.O. and Manik D.N., “Measurement Systems”, 6th Edition, McGraw-Hill Education Pvt. Ltd., 2011.
- Neubert H.K.P., Instrument Transducers – An Introduction to their Performance and Design, Oxford University Press, Cambridge, 2003
- Bela G.Liptak, Instrument Engineers’ Handbook, Process Measurement and Analysis, 4th Edition, Vol. 1, ISA/CRC Press, 2003.
- D. Patranabis, Sensors and Transducers, 2nd edition, Prentice Hall of India, 2010. E.A.
- John P. Bentley, Principles of Measurement Systems, III Edition, Pearson Education, 2000.
- W.Bolton, Engineering Science, Elsevier Newnes, Fifth edition, 2006.
- Murthy, D.V.S., Transducers and Instrumentation, 2nd Edition, Prentice Hall of India Pvt. Ltd., New Delhi, 2010.
- Ian Sinclair, Sensors and Transducers, 3rd Edition, Elsevier, 2012.