Sunday, June 24, 2012
ME2304 ENGINEERING METROLOGY AND MEASUREMENTS Syllabus for Mechanical Fifth(5th) Semester - Anna University
ME2304 ENGINEERING METROLOGY AND MEASUREMENTS L T P C
(Common to Mechanical and Automobile) 3 0 0 3
OBJECTIVE:
·
To understand the basic principles of measurements
· To learn the various linear and angular measuring equipments, their principle of operation and applications
· To learn about various methods of measuring Mechanical parameters
UNIT I
CONCEPT OF MEASUREMENT
9
General concept – Generalised measurement system-Units
and standards-measuring instruments:
sensitivity, stability, range,
accuracy and precision-static and dynamic
response-repeatability-systematic
and
random errors-correction, calibration - Introduction to Dimensional
and
Geometric Toleranceing -
interchangeability,
UNIT II LINEAR AND ANGULAR MEASUREMENT 9
Definition of metrology-Linear measuring instruments: Vernier,
micrometer,
Slip gauges
and classification, - Tool Makers Microscope - interferometery, optical
flats, -
Comparators: limit gauges Mechanical, pneumatic and electrical comparators,
applications. Angular measurements: -Sine bar,
Sine center,
bevel protractor and angle Decker..
UNIT III
FORM MEASUREMENT
9
Measurement of screw threads: Thread gauges,
floating carriage micrometer- measurement of gear tooth thickness: constant chord and base tangent method-Gleason gear testing machine – radius measurements-surface finish:
equipment and parameters, straightness, flatness and roundness measurements.
UNIT IV LASER AND ADVANCES IN METROLOGY 9
Precision instruments
based on laser-Principles- laser interferometer-application in measurements and machine tool metrology-
Coordinate measuring machine (CMM):
need, construction, types, applications.-
computer aided inspection.
UNIT V
MEASUREMENT OF MECHANICAL PARAMETERS 9
Force, torque, power:-mechanical, pneumatic, hydraulic and electrical type-Pressure measurement - Flow: Venturi, orifice, rotameter, pitot tube –Temperature: bimetallic
strip, thermocouples, pyrometer, electrical
resistance thermistor.
TEXT BOOKS:
1. Jain R.K., “Engineering Metrology”, Khanna Publishers, 2005
TOTAL: 45 PERIODS
2. Alan S. Morris, “The Essence of Measurement”, Prentice Hall of India, 1997
REFERENCES
1. Gupta S.C, “Engineering Metrology”, Dhanpat rai Publications, 2005
2. Jayal A.K, “Instrumentation and Mechanical Measurements”, Galgotia Publications
2000
3. Beckwith, Marangoni, Lienhard, “Mechanical Measurements”, Pearson Education,
2006.
4. Donald Deckman, “Industrial Instrumentation”, Wiley Eastern, 1985.
By Vinoth
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