Basic concept – Legal metrology – Precision – Accuracy – Types of errors – standards of
measurement – traceability – interchangeability and selective assembly, gauge blocks, limit
gauges – tailors principle of gauge design. Comparators: Mechanical, Electronic, optical and
Pneumatic – Automatic gauging.
UNIT II ANGULAR MEASUREMENT AND SURFACE FINISH MEASUREMENT
Angular measurement : sine bar – Autocollimator, optical projectors: profile projectors –
toolmakers microscope, measurement of surface finish: Terminology – roughness – waviness –
analysis of surface finish – stylus probe instrument –Talysurf.
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For Unit-2 - Click Here