Established as per the Section 2(f) of the UGC Act, 1956
Approved by AICTE, COA and BCI, New Delhi
Lecture 0.1
Introduction Class
School of Mechanical Engineering
Dr. B Somasundar
somasundarb@reva.edu.in
AY: 2020-2021
OUTLINE
Importance of Mechanical measurements and Instrumentation
Course Description
Course Objectives
Course Contents
Learning Resources
Additional Resources
Applications of Instruments used in metrology
Metrology and measurement Related Companies in India
Technologies
Job Roles in Industry
Type of Assignments
Quizzes
Pedagogy
Marks Distribution
Course Delivery
COURSE FACULTY MEMBERS
Dr B Somasundar
B.E, M.Tech,PhD
Associate Professor,
School of Mechanical Engineering, REVA University
Contact: somasundarb@reva.edu.in
Dr B Somasundar has been teaching since 2005 and earlier has
industrial experience of 3 years.
His areas of interest are Thermal coatings,oxidation, corrosion,
erosion and wear.
COURSE FACULTY MEMBERS
Mr. K.Sharan Teja Reddy
B.Tech, M.E,(Ph.D.)
Assistant Professor,
School of Mechanical Engineering, REVA University
Contact: sharantejareddy.k@reva.edu.in
Mr. Sharan Teja Reddy has been teaching since 2012.
His areas of interest are Manufacturing Technology, CAED, Material
Science.
B19MT3040: Mechanical Measurements
and Instrumentation
3 rd S e m e s t e r . A c a d e m i c Y e a r : 2 0 2 0 - 2 0 2 1 .
Introduction Class
Mechanical Measurements and Instrumentation
IMPORTANCE OF MECHANICAL MEASUREMENTS AND
INSTRUMENTATION
Linear and
Angular
Measurement
Force, Torque
and pressure
measurement
Temperature
and strain
measurement
Mechanical
Measurements
and
Instrumentation
System of
limits,fits and
tolerances
Comparators
Course Description
COURSE DESCRIPTION
It is concerned with the establishment, reproduction, conservation and transfer of units of
measurements and their standards
Deals with system of limits,fits and tolerances and gauging, different types of comparators
Deals with temperature, Thermometers, thermocouple, pyrometers and their application, strain
gauges and their applications in the measurement of strain.
Deals with measurement of force, torque and pressure measurement and their applications and
Advances in Modern Metrology.
Course Objectives
COURSE OBJECTIVES
The main objectives of this course are:
CO2:
CO1:
To impart the
knowledge of
importance of
standards &
conversion, concepts
involving linear and
angular measurement.
To introduce the
need of limit
systems,
tolerance and fits
in an assembly
system, concepts
involving
comparators.
CO4:
CO3:
To explore the
various aspects
regarding the
temperature and
strain
measurement
To elaborate the
methods of force,
torque and
pressure
measurement,
exposure to the
advances in
Modern
metrology.
Course Outcomes
COURSE OUTCOMES
On successful completion of this course; student shall be able to:
CO1:Explain the need, history
for the development of
standards & conversion and
concepts of linear and angular
measurement.
CO3: Apply the skills in
measuring strain and
temperature measurement
CO2:Demonstrate the
fundamentals of Limit
systems, tolerances, fits in
an assembly system and the
need of comparators.
CO4:Explain the concepts of
Force, torque and pressure
measurement and advances
in metrology.
Course Contents
COURSE CONTENTS
UNIT – 1:
Objective: To introduce the standards of lenth and the devices used for angular measurement.
Outcome: To describe the different standards of length and the different devices used for angular
measurement.
Metrology Definition
and standards of
length:
Objectives of
metrology, role of
standards, standards
of length- International
prototype meter,
Imperial standard yard
Wavelength standard
and calibration of end
bars
wave length standard,
subdivision of
standards, line & end
standard, calibration of
end bars (numerical),
Slip gauges and
wringing phenomena
Slip gauges, Wringing
phenomenon,
Numerical problems
on building of slip
gauges,
Angular
Measurement
Vernier bevel
protractor, Angle
gauges, Sine principle,
Sine bar & Sine Centre
Click here for Syllabus Copy
COURSE CONTENTS
UNIT – 2:
Objective: To introduce the need of limits, Fits and tolerances, interchangability and comparators
Outcome: To describe the limits, Fits,tolerances, interchangability and different types of comparators,
Need of limits and
Tolerances:
Need of limit system,
Tolerance,
Specification of
tolerance in assembly,
Accumulation
tolerance & compound
tolerance,
Need of
Interchangability and
concept of fits
principle of
interchangeability &
selective assembly,
concept of limit of size
& tolerance, Concept
of fits, types of fits,
shaft basis & hole basis
system
Comparators
Geometrical
Tolerances
geometric tolerance,
tolerance grade,
Numerical problem on
limits and fits. Taylor’s
principle
introduction to
comparators, need,
characteristics,
classification of
comparators,
Johanson Mikrokator,
Zeisss ultra optimeter,
Solex, LVDT
Click here for Syllabus Copy
COURSE CONTENTS
UNIT – 3:
Objective: Discuss the principle and working of thermometers, thermistors, thermocouple,
pyrometers stain gauges for temperature and measurement
Outcome: To interpret temperature and strain measurement by using various devices
Thermometers
working principle,
construction,
advantages,
limitations and
applications of
temperature
measuring devices:
Thermistor,
Thermocouple and
pyrometers
Thermometer,
thermistor,
thermocouple,
radiation pyrometer,
optical pyrometer,
radiation pyrometer,
Strain measurement
Strain measurement,
strain gauge,
preparation &
mounting of strain
gauges, electrical
strain gauge, backing
& bonding materials
Click here for Syllabus Copy
COURSE CONTENTS
UNIT – 4:
Objective: To introduce the measurement of force, torque, pressure measurement and advances in
metrology.
Outcome: To describe the different methods of force,torque, pressure measurement, advances in
metrology and machine vision systems.
.
Force and Torque
Machine vision
Pressure
Advances
in
measurement
systems
measurement
Metrology
Introduction, Direct
straightness,
Introduction to
Pressure
method: Analytical
advancement in
alignment, ball bar
measurements,
balance, unequal arm
metrology, lasers in
test, Machine vision,
principle, Bridgeman
balance, proving ring.
metrology, advantages
basic concept of
Torque measurement:
gauge, McLeod gauge,
of lasers, laser scan
machine vision
Mechanical, hydraulic
Pirani gauge.
micrometer
dynamometer
system, elements,
applicationsapplications. . .
Click here for Syllabus Copy
COURSE CONTENTS
List of Experiments
.
Measurement of angle using sine center/sine bar/bevel protractor/roller set.
Measurement of alignment/flatness using Autocollimator
Measurements of Surface roughness using surface roughness tester
To inspect the height of given specimens using mechanical comparator.
Measurement of effective diameter of screw thread using two wire or
Three-wire method.
Measurement of gear tooth thickness using gear tooth vernier caliper.
Calibration of Micrometer using slip gauges
Measurement surface flatness using optical flats
Measurement of cutting tool forces using Lathe Tool Dynamometer
Measurement of cutting tool forces using Drill Tool Dynamometer.
Learning Resources
LEARNING RESOURCES
Text books:
Beckwith Marangoni and Lienhard, Mechanical
Measurements, Pearson Education, 6th Ed., 2006.
R.K. Jain, Engineering Metrology, Khanna Publishers,
1994.
I.C.Gupta, Engineering Metrology Dhanpat rai
publications
LEARNING RESOURCES
Reference Books :
Bently, Engineering Metrology and
Measurements, Pearson Education
Anand K. Bewoor & Vinay A. Kulkarni
Metrology & Measurement, Tata
McGraw.
Gupta I.C, Engineering Metrology,
Dhanpat Rai Publications, Delhi.
N.V Raghavendra & L. Krishnamurthy,
Engineering Metrology and
Measurements, Oxford University Press.
R.K Jain Mechanical Measurement,
Khanna Publishers. 1994
Additional Resources
ADDITIONAL RESOURCES
Web resources
• https://nptel.ac.in/courses/112/106/112106139/
• https://cosmolearning.org/courses/mechanicalmeasurements-and-metrology/
MOOC resources
• https://swayam.gov.in/nd1_noc19_me70/preview
• https://iitbmechdamp.wordpress.com/me-226mechanical-measurements-2/
Certification courses
• https://www.classcentral.com/course/swayamengineering-metrology-14037
• https://www.nttftrg.com/certificate-programs/inspectionmetrology
ADDITIONAL RESOURCES
Competitive Exams
GATE
IAS
CAT
Other
Exams
• https://easyengineering.net/metrology-handwritten-study-materials/
• https://www.btechguru.com/GATE--mechanical-engineering--metrology-and-inspectionvideo-lecture--23--201.html
• https://qualifygate.com/download-s-k-mondal-mechanical-engineering/
• https://www.jagranjosh.com/articles/upsc-iasprelims-subjectwise-study-material-importantresources-for-complete-preparation-1585745500-1
• https://easyengineering.net/me6504-metrology-and-measurements/
• http://www.brainkart.com/subject/Metrology-and-Measurements_70/
• http://www.metrology.pg.gda.pl/
• https://lecturenotes.in/subject/468/metrology-and-measurements-mm
DISCUSSION
5 MINUTES