The air gap at B in Figure 5 is determined
air gap = /2
= 11.6 micro inches X9
in the same manner.
This value should be
= 104.4 micro inches
____________ micro inches.
straight and evenly spaced. These bands were
_______ and _______ ______ because the gage block
No Response Required
flatness errors were produced by mating surfaces
which were flat. The mating surfaces also had
You know that the gap at B (foldout-12) is
wider than the gap at A because there are _______
interference ________ at B.
When the point of contact at A is shifted
by tilting one side of the optical flat as
in number and move _____ from the _____ of _____.
The material discussed to this point in
this chapter has been concerned with the optical
flat application which involves flatness error
measurements. In addition to the application
which involves __________ _______ measurements,
you should know the application which involves
height (reference dimension) measurements.
In order to determine the difference in the
you must know (or measure) the _________ of the
___________ block and the ___________ from the
___________ ______ of one block to the ________
____________ of the other block.