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PPT: Measuring and Gauging Instruments Mechanical Engineering Notes | EduRev

Mechanical Engineering : PPT: Measuring and Gauging Instruments Mechanical Engineering Notes | EduRev

``` Page 1

Linear and Angular
Linear and Angular
Measurement
Measurement
?
The Linear Measurement includes
measurements of length, diameters,
heights and thickness
?
The Angular measurement includes the
measurement of angles or tapers
Page 2

Linear and Angular
Linear and Angular
Measurement
Measurement
?
The Linear Measurement includes
measurements of length, diameters,
heights and thickness
?
The Angular measurement includes the
measurement of angles or tapers

Dimensions
Dimensions
?
A very common measurement is that of
dimensions, i.e., length, width, height of
an object
?
Dimensions of the measuring instruments
are classified as follows
? Low resolution devices (up to 0.25mm)
? Medium  resolution devices (up to 0.025mm)
? High  resolution devices (less than microns)
Page 3

Linear and Angular
Linear and Angular
Measurement
Measurement
?
The Linear Measurement includes
measurements of length, diameters,
heights and thickness
?
The Angular measurement includes the
measurement of angles or tapers

Dimensions
Dimensions
?
A very common measurement is that of
dimensions, i.e., length, width, height of
an object
?
Dimensions of the measuring instruments
are classified as follows
? Low resolution devices (up to 0.25mm)
? Medium  resolution devices (up to 0.025mm)
? High  resolution devices (less than microns)

Low resolution devices
Low resolution devices
?
Steel rule
?
Steel rule with assistance of
? Calipers
? Dividers  &
? Surface gauges
?
Thickness gauges
Page 4

Linear and Angular
Linear and Angular
Measurement
Measurement
?
The Linear Measurement includes
measurements of length, diameters,
heights and thickness
?
The Angular measurement includes the
measurement of angles or tapers

Dimensions
Dimensions
?
A very common measurement is that of
dimensions, i.e., length, width, height of
an object
?
Dimensions of the measuring instruments
are classified as follows
? Low resolution devices (up to 0.25mm)
? Medium  resolution devices (up to 0.025mm)
? High  resolution devices (less than microns)

Low resolution devices
Low resolution devices
?
Steel rule
?
Steel rule with assistance of
? Calipers
? Dividers  &
? Surface gauges
?
Thickness gauges
T
Medium  resolution devices
Medium  resolution devices
?
Micrometer
?
Micrometer with assistance of
? Telescoping
? Extendable ball gauges
?
Vernier calipers
?
Dial indicators
?
Microscope
Page 5

Linear and Angular
Linear and Angular
Measurement
Measurement
?
The Linear Measurement includes
measurements of length, diameters,
heights and thickness
?
The Angular measurement includes the
measurement of angles or tapers

Dimensions
Dimensions
?
A very common measurement is that of
dimensions, i.e., length, width, height of
an object
?
Dimensions of the measuring instruments
are classified as follows
? Low resolution devices (up to 0.25mm)
? Medium  resolution devices (up to 0.025mm)
? High  resolution devices (less than microns)

Low resolution devices
Low resolution devices
?
Steel rule
?
Steel rule with assistance of
? Calipers
? Dividers  &
? Surface gauges
?
Thickness gauges
T
Medium  resolution devices
Medium  resolution devices
?
Micrometer
?
Micrometer with assistance of
? Telescoping
? Extendable ball gauges
?
Vernier calipers
?
Dial indicators
?
Microscope

High  resolution devices
High  resolution devices
?
Gauge blocks
?
Gauge block with assistance of
? Mechanical comparator
? Electronic comparator
? Pneumatic comparator
? Optical flats
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Manufacturing and Industrial Engineering

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