ME312 METROLOGY AND INSTRUMENTATION

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S6 Ktu Syllabus for The Subject Metrology And Instrumentation (ME312) Is Given Below. Select The Topic To View The Detailed Description.
MODULE 1
Concept of measurement:-Introduction toMetrology; Need for high precision measurements; Terminologies inMeasurement-Precision, accuracy, sensitivity, calibration.Errors in Measurement,types of errors, Abbe’s Principle.Basic standards of length- Line standard, Endstandards, Wavelength standard; Various Shop floor standards.Linear Measurement– Slip gauges, wringing, grades; Surface plate; Dial indicators; Height gaugesand Vernier calipers. Comparators- mechanical, electrical, optical andpneumatic.Angular Measurement – Bevel protractor; Sine Bar, principle and useof sine bar, sine centre; Angle gauges. Sprit level; Angle Dekkor; Clinometers.
MODULE 2
Limits and Limit gauges – Making to suit, selective assembly, systems of limitsand fits; Types of fits; Hole basis system and Shaft basis system.  Standard systems of limits and fits; Shaft andHole system; Tolerance, allowance and deviation (as per BIS).  Simple problems on tolerance and allowance,shaft and hole system.  Limit Gauges – GOand NO GO gauges; types of limit gauges .Gauge design - Taylor’s principle ofgauging; Gauge tolerance, disposition of gauge tolerance, wear allowance.  Optical Measuring Instruments: - Benefits ofusing light waves as standards; Monochromatic light; Principle of Interference  Interference band using optical flat, Interferometers – NPL flatness interferometer, Pitter-NPL gauge interferometer.
MODULE 3






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