4th Sem ME/PM DC-5

### SYLLABUS: METROLOGY & INSTRUMENTATION

(3 Hours Lecture/week): 3 credits

Module I: (10 Hours)

Basic Concepts- Measurement system elements, Experimental Test Plan- Random Tests, Replication & repetition, Calibration - Sensitivity, Range, Accuracy, Standards, Traceability. Signals - Types of waveforms, Signal analysis, Signal amplitude & frequency, Fourier transform, Frequency spectrum. Measurement Systems Modelling- General model, First order systems, Second order systems, Transfer functions.

Module II: (10 Hours)

Statistical Measurement theory- Confidence intervals for means and standard deviations, Regression analysis, Data outlier detection. Uncertainty analysis- Type A and Type B, Determining combined standard uncertainty- Uncorrelated and correlated input quantities, reporting. Sampling concepts, Digital devices, D/A & A/D conversion, Data acquisition systems.
Module III: (10 Hours)

Metrology: Interferometry-, Slip gauges, Comparators, Abbe's principle, Pneumatic transducer, Electronic transducers, Angle measurement- Sine bar, angle gauges Optical instruments- Profile projectors, Autocollimators. Surface finish- Parameters, Stylus instruments. Limits and fits, Tolerancing of gauges, Evaluation of geometric tolerances, Screw thread measurements, Gear measurements. Coordinate Measuring Machines- Construction, Operation & Programming, Software, Applications. Machine Vision.

Module IV: (9 Hours)

Instrumentation: Temperature measurement- Expansion thermometers, Resistance Temperature Detectors, Thermistors, Thermocouples, radiative measurements. Pressure measurements- Manometers, Elastic transducers. Strain measurements- Resistance & semiconductor strain gauges, circuits and arrangements. Force & Torque measurements.

Text Books:

- Figliola, Richard S, & Beasley, Donald E, "Theory and Design for Mechanical Measurements", Third edition, John Wiley & Sons Inc,
- Collett, CV, & Hope, AD, "Engineering Measurements", Second edition, ELBS/Longman.

References:

- Chapman, W. A. J., "Workshop Technology - Part 3" Oxford & IBH Publishing Co Pvt Ltd, New Delhi.
- Doebelin, Ernest O., "Measurement Systems", 4th edition, McGraw-Hill International.
- Montgomery, Douglas C., "Design and Analysis of Experiments", Fifth ed, John Wiley & Sons Inc. New Delhi.
- Taylor, B. N., and Kuyatt, C. E.,"NIST Technical Note 1297: Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results", National Institute of Standards and Technology, USA.

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