| Time domain
analysis is a powerful but intimidating tool. Hopefully, this section of
the manual has helped you understand some of the secrets of the time domain
as well as some of the secrets of the FFT process. Again, there are specific
areas where we recommend using time domain analysis without exception: |
-
Slow Speed Equipment
(< 300 rpm)
-
Sleeve Bearings
(particularly if readings reflect true shaft movement)
-
Gear Applications
However, there are many people who would
argue that time domain is a valuable tool on all applications and we cannot
argue with them - the wave shape can provide information that you will
not get from an FFT. If you are comfortable with it and have the time to
collect it, by all means - it is another way to look at how your machines
are behaving. |
We also cannot argue with the people
who claim:
-
Time Domain is
complicated
-
Time Domain is
difficult to interpret
-
Often you can't
make head nor tail of a time domain plot
Each of these is also true. So . . .
. the sooner you start using it and getting comfortable with it, the sooner
you'll become proficient at using this powerful tool. Remember the three
things you need:
-
PRACTICE
-
PRACTICE
-
PRACTICE
|
