Course Introduction

Paras Khadka

MEEG 219 - Metrology

Outline

Learning OutcomesSyllabus Introduction of Faculty/Students

Course Learning Outcomes

After learning this course, the students will be able to1) Know the general measuring concepts and their applications

in engineering system2) Know the different types of comparators and their

applications in engineering measurement system3) Know the general principal of measurements4) Know the different types of gauges and their applications in

engineering systems5) Do the measurements of angle and taper with proper

gauges/instruments6) know about the different types of instruments for surface

finish measurement and their applications7) Know about the different types of optical measuring

instrument and their applications8) Be familiar with gear measurements

Other Objectives To develop your intuitive judgment

for proper selection of measuring instrument/gauges/comparators for solving problem related to measurement in engineering system

Facilitate personal and professional growth.

Develop and practice interactive and participative system of learning.

Proposed Course Format

45 Contact Hours? Monday 1pm-2pm. Wednesday 9am-11am. 1-2 extra hours/week-

occasionally (if available) (10-12 weeks?)

Mostly Lectures/ with real models ( if available)?

Syllabus

   

Metrology                                                             3  General measurement concept: Principles of achieving accuracy.  Methods for estimating accuracy and precision; precision versus accuracy.  systematic and constant errors. Statistical concepts in metrology.  Statistical analysis of measurement  data.  Control chart techniques.Comparators: Mechanical, optical, pneumatic, electrical and electronic comparators; Automatic gauging for inspection.General principles of measurements: Line and end measurements.  Standards. Linear measurements.  Basic units and quantities for displacement, mass, time, temperature and optics.  Systems of limits and fits.  Selecting and assigning of fits.  Tolerances for linear dimensions and  tolerances for ball and roller bearings.Gauges: Classification.  Design of gauges; gauge makers' tolerance, wear allowance.  Gauge material and gauge manufacture. Tools of checking straightness; flatness and squareness.Measurements of angles and tapers.  Sine bar and angle gauges. Taper gauges, bevel protractors.Measurement of  Surface Finish: Definition; elements of surface finish.  Symbols for specifying surface finish. Instruments for surface finish measurement.Optical measuring instruments: Interferometry, optical flats, optimeters. tool makers microscope, optical projectors, levels, collimators.Gauging and measurement of screw threads: Gauging methods for manufacturing.  Screw thread terminology.   Standard specifications and formulae tolerances.  Thread gauge measurement, measuring equipment for thread gauges.Gear measurement: Measuring methods for run-outs.  Pitch profile, lead, backlash and tooth thickness; composite elements; inspection equipment.

As per the University rules

Internal assessment – 25 marks (Assignments/ written tests)

Final Exam- 75 marks

Evaluation Plan

As your subject teacher

I will guide you through course

Can facilitate you making your understanding better with the subject matter

Act like a motivator

Don’t have all the answers

Course Deliverables

Occasional Homework (Individual)

group activities/presentations (group) ?

Internal Exams ( Individual)Final Exam (Individual)

About me….

Paras KhadkaDang, Rapti, NepalB.E. ( mechanical engineering), KU (1994-1998)Presently- A graduate student of mechanical Engineering at KUI’m married- we are 4 members in my family (my mother, my wife and a son)

My Experience

Council for Technical Education & Vocational Training-as Mechanical instructor

- as Head of the Department, Mechanical

Skills for Employment Project (Nepal Gov/ Asian Development Bank(ADB) funded project)

- As Regional Project Manager (Mid and Far western Region)

- My Professional Visits representing Nepal Brunei , Thailand, Japan

Let’s do an activity….(5 minutes)Make a pair with one of your friends Get a paper sheetAbout you:

Write your name and State two things you think others

would be surprised to know about you.About your pair:

Write your friends name and State two things that you feel that your pair doesn’t know about himself/herself

Now exchange the paper sheet with your pair..

Keep it safe… don’t lose….

More Keys to SuccessConsistent Effort Don’t miss any classes

( attendance matters)Focus on the concepts (there

are no shortcuts)Be participative Keep in regular

communication with teacher?

Reminder Make best use of learning resources

( KU library , internet, etc) There is no single text book

recommended for this subject Any books on METROLOGY are good

references. However few prescribed references are:

1. R.K. Jain, “Metrology”, Khanna Publications, New Delhi

2. Sharpe, “ Metrology”, ELBS3. Hume, “ Metrology”, McDonald & Co.

Make consistent effort

I hope that you can all make it….

About the activity…..

Did u know anything new about yourself…. Did u know anything new about your friend too…If the new things are your– STRENGHTS…. Then CONTINUE– WEAKNESSES…. Don’t IGNORE, try to MINIMIZE

Communication makes it possible to excel together