Geometric Forms of Measurement Different Geometric Forms Straightness

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Geometric Forms of Measurement

Geometric Forms of Measurement

Different Geometric Forms Straightness Flatness Circularity Parallelism Squreness

Different Geometric Forms Straightness Flatness Circularity Parallelism Squreness

Straightness A line is said to be straight over a given length if its

Straightness A line is said to be straight over a given length if its deviation with respect to ideal reference line are within the specific tolerance limit

Test for Straightness Using the straight edge Wedge Use method of spirit level

Test for Straightness Using the straight edge Wedge Use method of spirit level

Flatness It is defined as minimum distance between two planes within which all the

Flatness It is defined as minimum distance between two planes within which all the points on a surface lie. A surface along which all the points lie along single plane is called as perfectly flat surface.

Test for Flatness Using a surface plate Straight edge Dial gauge Spirit level Autocollimator

Test for Flatness Using a surface plate Straight edge Dial gauge Spirit level Autocollimator Interference method

Squareness Checking of squareness or squareness testing implies checking weather the one plane is

Squareness Checking of squareness or squareness testing implies checking weather the one plane is right angle to another.

Test for Squareness Try square Combination square Indicator method Autocollimator

Test for Squareness Try square Combination square Indicator method Autocollimator

Parallelism Two line axis or plane are said to be parallel two each other

Parallelism Two line axis or plane are said to be parallel two each other if the distance measure between them in a perpendicular plane remain same.

Using the straight edge

Using the straight edge

Using the straight edge

Using the straight edge

Autocollimator

Autocollimator

Autocollimator

Autocollimator

Spirit Level

Spirit Level

Surface Plate

Surface Plate

Dial Indicator

Dial Indicator

Try Square

Try Square

Two Plane

Two Plane

Circularity checking by V block and dial

Circularity checking by V block and dial

Polarography

Polarography

Parallelism checking by spirit level

Parallelism checking by spirit level

Parallelism checking by Dial Gauge

Parallelism checking by Dial Gauge

Circularity checking

Circularity checking