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# ME3592 Metrology and Measurements [PDF]

## ME3592 Metrology and Measurements Study Materials

Anna University – ME3592 Metrology and Measurements Regulation 2021 Syllabus , Notes , Important Questions, Question Paper with Answers Previous Year Question Paper.

UNIT – I BASICS OF METROLOGY ME3592 Metrology and Measurements Syllabus

Measurement – Need, Process, Role in quality control; Factors affecting measurement – SWIPE; Errors
in Measurements – Types – Control – Measurement uncertainty – Types, Estimation, Problems on
Estimation of Uncertainty, Statistical analysis of measurement data, Measurement system analysis,
Calibration of measuring instruments, Principle of air gauging- ISO standards.

UNIT – II MEASUREMENT OF LINEAR, ANGULAR DIMENSIONS, ASSEMBLY AND TRANSMISSION ELEMENTS ME3592 Metrology and Measurements Notes

Linear Measuring Instruments – Vernier caliper, Micrometer, Vernier height gauge, Depth Micrometer,
Bore gauge, Telescoping gauge; Gauge blocks – Use and precautions, Comparators – Working and
advantages; Opto-mechanical measurements using measuring microscope and Profile projector – Angular
measuring instruments – Bevel protractor, Clinometer, Angle gauges, Precision level, Sine bar,
Autocollimator, Angle dekkor, Alignment telescope. Measurement of Screw threads – Single element
measurements – Pitch Diameter, Lead, Pitch. Measurement of Gears – purpose – Analytical
measurement – Runout, Pitch variation, Tooth profile, Tooth thickness, Lead – Functional checking –
Rolling gear test.

UNIT – III TOLERANCE ANALYSIS ME3592 Metrology and Measurements Important Questions

Tolerancing– Interchangeability, Selective assembly, Tolerance representation, Terminology, Limits and
Fits, Problems (using tables IS919); Design of Limit gauges, Problems. Tolerance analysis in
manufacturing, Process capability, tolerance stackup, tolerance charting.

UNIT – IV METROLOGY OF SURFACES ME3592 Metrology and Measurements Question Bank

Fundamentals of GD & T- Conventional vs Geometric tolerance, Datums, Inspection of geometric
deviations like straightness, flatness, roundness deviations; Simple problems – Measurement of Surface
finish – Functionality of surfaces, Parameters, Comparative, Stylus based and Optical Measurement
techniques, Filters, Introduction to 3D surface metrology- Parameters.

UNIT – V ADVANCES IN METROLOGY ME3592 Metrology and Measurements Question Paper

Lasers in metrology – Advantages of lasers – Laser scan micrometers; Laser interferometers –
Applications – Straightness, Alignment; Ball bar tests, Computer Aided Metrology – Basic concept of CMM
– Types of CMM – Constructional features – Probes – Accessories – Software – Applications – Multisensor CMMs.
Machine Vision – Basic concepts of Machine Vision System – Elements – Applications – On-line and inprocess monitoring in production – Computed tomography – White light Scanners.

TEXT BOOKS: ME3592 Metrology and Measurements Notes

1. Dotson Connie, “Dimensional Metrology”, Cengage Learning, First edition, 2012.
2. Mark Curtis, Francis T. Farago, “Handbook of Dimensional Measurement”, Industrial Press, Fifth
edition, 2013.

REFERENCES: ME3592 Metrology and Measurements Important Questions

1. AmmarGrous, J “Applied Metrology for Manufacturing Engineering”, Wiley-ISTE, 2011.
2. Galyer, J.F.W. Charles Reginald Shotbolt, “Metrology for Engineers”, Cengage Learning EMEA; 5th
revised edition, 1990.
3. National Physical LaboratoryGuideNo. 40, No. 41, No. 42, No. 43, No. 80, No. 118, No. 130, No. 131.
http://www.npl.co.uk.
4. Raghavendra N.V. and Krishnamurthy. L., Engineering Metrology and Measurements, Oxford
University Press, 2013.
5. Venkateshan, S. P., “Mechanical Measurements”, Second edition, John Wiley &Sons, 2015.