MSBTE Engineering Metrology Video Lectures in FREE | MSBTE Diploma 22342 Mechanical Engineering

1.1 Definition of metrology, objectives of metrology.

1.2 Categories of metrology, Scientific metrology, Industrial metrology, Legal metrology.

1.3 Need of inspection, Precision, Accuracy ,Sensitivity, Readability, Calibration, Traceability, Reproducibility.

1.4(a) Sources of errors,

1.4(b) Factors affecting accuracy.

1.5(a) Selection of instrument,

1.5(b) Precautions while using an instruments for getting higher precision and accuracy.

1.6 Concept of least count of measuring Instrument,

2.1 Definition and introduction to line Standard, end standard, Wavelength standard and their comparison.

2.2(a) Slip gauge

2.2(b) Slip gauge Accessories

2.3(a) Definition and Requirement of good comparator,

2.3(b) Classification, use of comparators.

2.4(a) Construction and Working principle of comparators-

2.4(b) Dial indicator,

2.4(c) Sigma Comparator,

2.4(d) Pneumatic comparator- high pressure differential type.

2.5 Relative advantages and disadvantages.

3.1(a) Concept of Limits and Fits and Tolerances.

3.1(b) Concept of Deviation

3.2 Basic Terminology, Selective Assembly, Interchangcability.

3.3(a) Indian standard (IS 919-1993) Fits,

3.3(b) Types of fits,

3.3(c) Hole and Shaft Basis System,

3.3(d) Guide for selection of fit.

3.4(a) ISO system of limit and fit,

3.4(b) (Numerical on finding the limit and tolerances of hole and shaft assembly).

3.5(a) Gauges: Limt guages.

3.5(b) Taylors principle of gaugage design plug,

3.5(c) Ring Guages,

3.5(d) Snap guage,

3.5(e) Adjustable snap guage.

4.1(a) Screw thread terminology,

4.1(b) Errors in threads and Pitch

4.2(a) Measurement of different elements such as Major diameter

4.2(b) Measurement of different elements such as Minor diameter

4.2(c) Measurement of different elements such as Effective diameter

4.2(d) Measurement of different elements such as Pitch diameter

4.2(e) Best size of wire Two wire method,

4.2(f) Thread gauge micrometer.

4.3 working principle of floating carriage micrometer.

4.4 Introduction to Tool Maker's Microscope,

4.5(a) Analytical and functional inspection of Gear,

4.5(b) Measurement of tooth thickness by constant chord method and base tangent Method by Gear Rolling tester / Parkinson’s Gear Tester.

4.6(a) Measurement of tooth thickness by Gear tooth Vernier and Profile projector Errors in gears such as backlash,

4.6(b) Run out

5.2 Concept of angular measurement.

5.3 Instruments for angular Measurcments.

5.4(a) Use and working of universal bevel protractor,

5.4(b) Sine bar,

5.4(c) Spirit level.

5.5(a) Principle of Working of Clinometers,

5.5(b) Angle Gauges

5.5(c) Angle Gauges With Numerical on Setting of Angle Gauges

5.5(d) Angle dckkor as an angular comparator.

6.1(a) Primary and secondary texture,

6.1(b) Terminology of surface texture as per IS 3073-1967, CLA, Ra, RMS, Rz values and their interpretation,

6.1(c) Symbol for designating surface finish on drawing.

6.2(a) Various techniques of qualitative analysis,

6.2(b) Working principle of styles Roughness Tester,

6.2(c) Interferometry

6.3(a) Parallelism,

6.3(b) Straightness, Squareness, roundness, run out,

6.3(c) Alignment tests of Lathe

6.3(d) Alignment tests of Drilling,

6.3(e) Machine tools as per IS Stantards

6.4(a) Flatness testing using Monochromatic light sources with optical flat.

6.4(b) Introduction to CMM