Page 61 - Personal Study Notes (Engineering Metrology - 22342)

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(c) Indicating Gauges:

Indicating gauges are complex in design and construction as compared to the other
types of gauges. They are used to indicate the value of dimensions on a visual display

system.
Dial gauge is a popular example of indicating gauges. Like dial gauge, all the indicating

gauges incorporate some magnification system. For dimension control of a component,
the pointer must lies between two prefixed points.

(d) Combination Gauges:

These are special designed gauges to measure or check more than one dimensions of
a component in a given setup.

2. According to the Purpose:

According to the purpose, the gauges may be classified as:
(a) Workshop Gauges,
(b) Inspection Gauges, and

(c) Master Gauges (Reference Gauges).

(a) Workshop Gauges:

Workshop gauges are used by the machine operator to check the dimensions of the
components as they are being produced. These gauges are designed to keep the size

of the component near the centre line of the tolerance.
(b) Inspection Gauges:

Inspection gauges are used by the inspectors for the final acceptance of manufactured
components when finished. These gauges have slightly larger tolerance than the

workshop gauges so as to accept component slightly nearer the tolerance limit than the
workshop gauges.

Engineering Metrology (Only For Personal Use) 18