pneumatic comparator and solex pneumatic comparator
Principle of pneumatic comparator The measurement is made by taking reading using master gauge of known accuracy and comparing with component reading It uses a controlled, pressurised jet of air to measure small dimensional variation in the size of component The working principle of pneumatic comparator depends on the flow of air between the gauge head and the component being checked Important characteristics Very high magnifications are possible It can be used to measure diameters, length, squareness, parallelisms, concentricity,taper, and other geometric conditions. Internal dimensions can be readily measured , in other words, while measuring a bore it can reveal complete details of size, taper, straightness,camber and bell mouth etc. It is independent of the operator skill High pressure air gauging can be done by cleaning the parts which helps to eliminate errors due to dirt and foreign matter. As there is no physical contact made either with the setting gauge (or)
