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SYLLABUS

Unit - I :

BASICS OF METROLOGY Introduction to metrology – Need – Elements – Work piece – Instruments – Persons – Environment – Their effect on precision and accuracy – Errors – Errors in measurements – Types – Control – Types of standards.

Unit - II :

LINEAR AND ANGULAR MEASUREMENTS Linear measuring instruments – Evolution – Types – Classification – Limit gauges – Gauge design – Terminology – Procedure – Concepts of interchangeability and selective assembly – Angular measuring instruments – Types – Bevel protractor clinometers angle gauges, spirit levels sine bar – Angle alignment telescope – Autocollimator – Applications.

Unit - III :

ADVANCES IN METROLOGY Basic concept of lasers advantages of lasers – Laser interferometers – Types – DC and AC lasers interferometer – Applications – Straightness – Alignment. Basic concept of CMM – Types of CMM – Constructional features – Probes – Accessories – Software – Applications – Basic concepts of machine vision system – Element – Applications.

Unit - IV :

FORM MEASUREMENT Principles and methods of straightness – Flatness measurement – Thread measurement – Gear measurement – Surface finish measurement – Roundness measurement – Applications.

Unit - V :

MEASUREMENT OF POWER, FLOW AND TEMPERATURE Force, torque, power – Mechanical , pneumatic, hydraulic and electrical type. Flow measurement: Venturimeter, Orifice meter, Rotameter, Pitot tube – Temperature: bimetallic strip, thermocouples, electrical resistance thermometer – Reliability and calibration – Readability and reliability.