Metrology : linear measurement slip gauges and dial indicators, angle measurements, bevel protractor, sine bar, angle slip gauges, comparators (a) mechanical (b) electrical (c) optical (d) pneumatic. Measurement of surface roughness; methods of measurements by comparison, tracer instruments and by interferometry, collimators, measuring microscope, interferometer, inspection of machine parts using the concepts of shadow projection and profile projection.
Answers
Answered by
0
Metrology and. Instrumentation. 6.2.1 Protractors. It is the simplest instrument for measuring angles between two faces. It consists of two arms and an engraved circular scale.
For measuring angles, angle gauges are more accurate than the sine bar. They are enables to measure any angle between 0 degrees and 360 degrees with an accuracy of 0.5 to 0.25 second.
List of measuring devices
Device Quantity measured
potentiometer voltage (term is also used to refer to a variable resistor)
profilometer surface roughness
protractor angles
psychrometer humidity
Similar questions