BIRLA INSTITUTE OF TECHNOLOGY & SCIENCE PILANI, K.K. Birla Goa Campus

First semester 2015-2016 Course handout (part –II) 03/08/15 In addition to part –I (General handout for all courses appended to the timetable) this portion gives further details regarding the courses.) Course No. : INSTR F312 Course Title : Transducers and Measurement Systems Instructor-in-charge : GAUTAM BACHER 1. COURSE DESCRIPTION:

INSTR F312 TRANSDUCERS AND MEASUREMENT SYSTEMS 3 0 3 Importance and types of measurement, generalized measurement system, functional elements, static & dynamic characteristics, primary sensing elements, modulating transducers, self generating transducers, inverse transducers, MEMS based transducers, measurement techniques for motion, seismic, pressure, Flow, temperature, level, humidity, pH, viscosity, signal conditioning techniques using bridge, op-amp, instrumentation amplifier, carrier, chopper, charge, isolation amplifier, data converters, filters, modulators, data acquisition system. 2. SCOPE AND OBJECTIVE: The objective of the course is to have a detailed study of measurement systems and to understand their application in the areas of monitoring, control and experimental engineering analysis. 3. TEXT BOOK: T1: Ernest O. Doebelin, “Measurement Systems Applications and Design”, Tata McGraw Hill Edition, Fifth Edition, 2004 T2: Bhanot Surekha, “Transducers and Measurement Systems”, Notes EDD Vol. I&II, 2007 4. REFERENCE BOOKS: R1: Murthy D.V.S, “Transducers and Instrumentation”, PHI, I ed., 1995. R2: Jones B.E, “Instrumentation, Measurement and Feedback”, TMH, 1978. R3: Sawhney A.K, “Electrical & Electronics Measurement and Instrumentation”, Dhanpat Rai & Co.

5. COURSE PLAN:

Lecture

No.

Learning Objectives Topics to be covered

Reference to book chapter

1 To understand the basic concept and role of Instrumentation

Definition of measurement, method of measurement, types of instruments

Chap 1 (T2)

2 To identify functional elements of an instrument, modes of an instrument

Functional elements of generalized measurement system, Active/Passive transducers, Analog/Digital mode of operation, Null and Deflection methods.

Chap 2 (T1)

3 To identify the desired, interfering and modifying inputs and methods of correction

Input output configuration of measurement system, Methods of correction of modifying and interfering inputs

Chap 2 (T1)

4, 5

To study static performance characteristics, statistical analysis of errors

Calibration, Precision, Accuracy, threshold, resolution, Hysteresis, Linearity, Sensitivity, drift, Span, Range, Normal Distribution curve, Probable error

Chap 3 (T2)

6,7 To study dynamic performance characteristics

Types of excitation inputs; step, ramp and frequency response of First and Second order systems

Chap 3 (T1)

8 To learn about Resistive transducers

Resistive potentiometer, Strain gauges Chap 4 (T1) Chap 4 (T2)

9,10 To learn about Inductive transducers

Different types of transducers, Resistive, inductive etc, LVDT-inductive transducer

Chap 5 (T2) Chap 25 (R3)

11,12 To learn about Capacitive and Piezoelectric transducers

Capacitance pick ups, Piezoelectric transducers

Chap 6 & 7 (T2)

13, 14 To learn about Photoelectric transducers

Photoemmissive, Photoconductive, Photovoltaic, Phototransistor

Chap 8 (T2)

15, 16,17

To learn about bridge circuits, op-amps.

Op-amps, Instrumentation Amplifiers, Chopper amplifier, carrier amplifiers etc.

Chap 11& 12 (T2)

18,19 To learn about Filters, Modulators

Analog filters, Amplitude modulation/demodulation Chap 10 (T1)

20, 21 To learn about data converters A/D and D/A converter Chap 14 (T1)

22, 23 To learn methods of Force Torque, Shaft power measurement and use of elastic elements

Elastic Elements (Bourdon tube, Bellows, Diaphragm), Strain gages. Chap 5,6 (T1)

24,25 To learn fundamentals of pressure measurements, calibration

Units of pressure, , manometers, Pressure transducers. Chap 6 (T1)

26 To learn techniques of high and low pressure measurement

Bridgman, Mc-leod, Thermal conductivity, Ionization Gauge Chap 6 (T1)

27 To learn about seismic and acoustic measurements

Seismic displacement, Velocity and accelerating pickups, sound measurement Chap 4, 6 (T1)

28,29 To learn methods of measuring translation and rotational velocity

Moving coil ,moving magnet pickups, eddy – current magnet and photoelectric pulse counting, encoders

Chap 4 (T2)

30 To learn importance and techniques of flow measurement

Obstruction meters, Rotameters, Pitot tube Chap 7 (T2)

31, 32 To learn techniques of flow measurement

Turbine meter ,electromagnetic flow meters, ultrasonic flow meters, vortex shedding, laser Doppler velocity meter

Chap 7 (T2)

33 To learn techniques of flow measurement

Hot wire anemometer ,mass flow meter, positive displacement meter Chap 7 (T2)

34 To learn conventional techniques of temperature measurement

Thermal expansion methods –Bimetallic, liquid in glass ,pressure thermometer Chap 8 (T2)

35,36 To learn techniques of temperature measurement using devices having electrical output

Thermocouples, RTDs, Thermistors, Semiconductors sensors Chap 8 (T2)

37 To learn techniques of temperature measurement using radiation methods

Radiation fundamentals, radiation detectors, radiation Pyrometers Chap 8 (T2)

38 To learn methods of level and measurement

Direct and indirect methods, ultrasonic, radar, microwave Chap 21 (T1)

39 To learn techniques of viscosity density and pH

Hydrometer, air bubbler, weighing system, electrode element

Chap 22 (T1)

40 To learn about MEMS based Sensors

MEMS technology, MEMS based sensors Chap 10 (T1)

6. EVALUATION SCHEME: EC. No Component Duration Weightage Date & Time Nature

1 Test I 60 min 40 marks 23/09/15 4.00 pm to 5.00 pm CB

2 Test II 60 min 40 marks 29/10/15 4.00 pm to 5.00 pm CB

3 Assignment /Surprise Test 30 marks OB

4 Comprehensive Exam 3 hours 90 marks 11/12/15 (FN) CB

6. CHAMBER CONSULTATION HOUR: W 5 7. NOTICES: A Wing Notice Board 8. Makeup Policy: Make-up will be granted for any of the evaluation components with prior permission of the Instructor-in-charge and on extremely genuine grounds.

Instructor in-charge

INSTR F312