COMPARATORS. (i) In mass production, where components are to be checked at a very fast rate. (ii) As laboratory standards from which working or inspection.

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Presentation transcript:

COMPARATORS

(i) In mass production, where components are to be checked at a very fast rate. (ii) As laboratory standards from which working or inspection gauges are set and correlated. (iii) For inspecting newly purchased gauges. (iv) Attached with some machines, comparators can be used as working gauges to prevent work spoilage and to maintain required tolerances at all stages of manufacturing. (v) In selective assembly of parts, where parts are graded in three or more groups depending upon their tolerances.

(1) Mechanical comparators (2) Optical comparators (3) Electrical and Electronic comparators (4) Pneumatic comparators (5) Fluid displacement comparators (6) Projection comparators (7) Multi-check comparators (8) Automatic gauging machines

REEDS TYPE COMPARATOR DIAL INDICATOR Johansson 'Mikrokator‘ Sigma Comparator

Rack and pinion Cam and gear train Lever with toothed gear. Compound levers Twisted taut stripLever combined

PRINCIPLE MECHANICAL OPTICAL TYPE ZEISS ULTRA OPTIMETER

PRINCIPLE LINEAR VARIABLE DIFFERENTIAL TRANSFORMER(LVDT)

PHYSICAL PHENOMENON SYSTEMS OF PNEUMATIC COMPARATORS SOLEX PNEUMATIC

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