The difference between how Division 3 and Division 9 measure floor flatness
, and the changes that occur in a concrete slab between pouring and the time the floor covering is applied, have been the source of many arguments, much misspent time and numerous lawsuits," affirms ASCC Technical Director Bruce Suprenant.
Figure 4 shows the flatness
of a light guide plate determined using the single parameter method with different process parameters for microinjection molding.
Comparison of measurements of flatness
has been made with different device and methods, measured with CMM, marble table and comparator.
is a feature compared to itself, while parallelism requires that a feature be compared to a datum.
This interface between aesthetic and psychological flatness
is addressed in a 1998 work (shot on both video and film) tellingly titled Flat Is Beautiful, in which Benning follows Taylor, a preadolescent tomboy, as she drifts through life.
The system offers up to 5 nm resolution and a standard accuracy of 50 nm, measuring flatness
, line profile, radius and other surface parameters from a variety of surfaces (ground, lapped, honed, polished and superfinished).
Unfortunately, the powder also can add as much as 100 microns to the surface of the part, which affects the flatness
A key feature of both probe types is that their gain flatness
response may be conveniently characterized using step response techniques.
Spergel of Princeton University calls the finding "only incremental progress," because other studies had already indicated that the universe contains only one-third as much matter as needed for flatness
and supported the case for dark energy.
Many people are blind to space, having been overexposed to flatness
in pictures, books and television.
Such random selfishness leaves the film with a glib, cartoony flatness
The pitch's flatness
and strict rectangularity forge a link with the city below and beyond, signalling culture as opposed to nature in the hill behind, and bequeathing to the building both its major axis and its most formal and symmetrical face.