AT6005 - METROLOGY AND INSTRUMENTATION (Syllabus) 2013-regulation Anna University

AT6005 - METROLOGY AND INSTRUMENTATION (Syllabus) 2013-regulation Anna University

AT6005	METROLOGY AND INSTRUMENTATION	LPTC

3003

OBJECTIVES:

• Knowledge in usage of software to measure parameters like speed, position, velocity, pressure, force, torque, temperature etc

UNIT I	INTRODUCTION TO MEASUREMENTS AND SENSORS	9

Sensors: Functions- Classifications- Main technical requirement and trends Units and standards- Calibration methods- Classification of errors- Error analysis- Limiting error- Probable error- Propagation of error- Odds and uncertainty- principle of transduction- Classification. Static characteristics- mathematical model of transducers- Zero, First and Second order transducers- Dynamic characteristics of first and second order transducers for standard test inputs.

UNIT II	VARIABLE RESISTANCE AND INDUCTANCE SENSORS	9

Principle of operation- Construction details- Characteristics and applications of resistive potentiometer- Strain gauges- Resistive thermometers- Thermistors- Piezoresistive sensors Inductive potentiometer- Variable reluctance transducers:- EI pick up and LVDT

UNIT III	VARIABLE AND OTHER SPECIAL SENSORS	9

Variable air gap type, variable area type and variable permittivity type- capacitor microphone Piezoelectric, Magnetostrictive, Hall Effect, semiconductor sensor- digital transducers-Humidity Sensor. Rain sensor, climatic condition sensor, solar, light sensor, antiglare sensor.

UNIT IV	AUTOMOTIVE PRESSURE AND FORCE/TORQUE SENSOR	9

Pressure Sensor: Typical automotive applications- Thick film pressure sensor- Semiconductor pressure sensor- Integrated silicon intake-manifold pressure sensor-Integrated silicon combustion-pressure sensor- Piezo electric sensor-High pressure sensor with metal diaphragm.
Force/Torque Sensor: Typical automotive applications- Magneto elastic bearing-pin sensor- Magneto elastic tension/compressive-force sensor according to the cross-ductor principle – Basic principle of torque measurement –Stress and Angle measuring torque sensor

UNIT V	AUTOMOTIVE POSITION AND RPM/VELOCITY SENSORS	9

Position Sensors:- Typical automotive applications- Wiper potentiometers- Short-circuiting ring sensor- Half-differential sensor- Eddy-current pedal-travel sensor- Integrated Hall IC’s - Hall acceleration sensor- Knock sensors-RPM and Velocity Sensors: - Inductive rotational speed sensor- Hall effect sensor
Temperature Sensors:- Typical automotive applications -Sintered-Ceramic resistors-Thin film resistors-Thick film resistors- Monocrystalline silicon semiconductor resistor- Thermopile sensors Flow Sensors:- Ultrasonic flow sensors-Pitot tube air-flow sensor- Hot wire air-mass flow meter- Micro mechanical hot-film air-mass flow meter- Lambda sensor -Imaging sensor-Rain Sensor Introduction to MEMs

TOTAL : 45 PERIODS

OUTCOMES:

• At the end of the course, the students will aware the various instruments that are available to measure parameters like speed, position, velocity, pressure, force, torque, temperature etc.

TEXT BOOKS:

1. Doeblin E.O, “Measurement Systems : Applications and Design”, 5th Edition, Tat McGraw-Hill Publishing Co,2007
2. Robert Brandy, “ Automotive Electronics and Computer System”, Prentice Hall, 2001
3. William Kimberley,” Bosch Automotive Handbook”, 6th Edition, Robert Bosch GmbH, 2004

REFERENCES

1. Bentley J.P ,” Principles of Measurement Systems”, 4th Edition, Addision Wesley Longman Ltd., U.K, 2004
2. Patranabis.D, “ Sensors and Transducers”, 2nd Edition, Prentice Hall India Ltd, 2003
3. Murthy D.V.S, “Transducers and Instrumentation”, Prentice Hall of India, 2007
4. Neubert H.K.P.,” Instrument Transducers- An Introduction to their Performance and Design” , Oxford University Press, Cambridge, 2003