Seite 9 von 53 Seiten
1.3.4
G
ENERAL REMARKS ABOUT
"ANGLES"
Every angle may be defined in different
ways. The most popular way is a definition
in Degrees / Minutes / Seconds.
This is shown in the graph.
Such a definition is especially useful for
larger angles.
With an angular measuring instrument not only an
angle may be measured but also the height of a
certain point over a defined base length can be
calculated. for a profile of a line or a surface) Due to
this simple and reliable method a number of tasks
are possible, especially for measuring guide ways
and surface plates definition.
Angle
αααα
= Height of the measuring point related to a
defined base.
Height of the measuring point = tan
αααα
x length of base
Example:
Angle = Height related to a defined base.
e.g
.. 22 µm/m
Example:
Because the relation µm/m is 1/1'000'000 the same
relation can also be applied to micro inch/inch
Angle = Height related to a defined base.
e.g.
22 µm/m are equal to 22 micro inch/inch or
0,000022 Inch / Inch
