Page 62 - Personal Study Notes (Engineering Metrology - 22342)

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(c) Master Gauges:

Master gauges are also referred as reference gauges. These are used only for checking
of other gauges. Due to expenditure involved, master gauges are seldom used and

gauges are checked by conventional measuring instruments like, comparators, slip
gauges, optimizers etc.

3. According to the Function:

According to the function, the gauges may be classified as:
(i) Dimension Measuring Gauges.

(ii) Geometry Measuring Gauges.
Dimension Measuring Gauges again may be classified as:

(a) Inside Dimension Measuring Gauges.
(b) Outside Dimension Measuring Gauges,

(c) Both side Dimension Measuring Gauges.
Geometry Measuring Gauges again may be classified as:

(a) Concentricity measurement.

(b) Taper measurement.
(c) Profile measurement
Inside dimension measuring gauges are:

i. Plug Gauges.

ii. Pin Gauges, etc.
Outside dimension measuring gauges are:
i. Snap Gauges,

ii. Ring Gauges,

Both side dimensions measuring gauge are:
i. Calliper Gauges

4. According to the Design:

According to the design, the gauges maybe classified as:
(i) Single limit, double limit.

(ii) Single ended, double ended.
(iii) Fixed, Fastened

(iv) Integral end, Renewable end.
(v) Solid end, Hollow end.

Engineering Metrology (Only For Personal Use) 19