If you just need the flow over the unit then get a good length of tube
(air conditioning duct, round / square or rect in section) large enough
to take your unit with space around it, a variable speed desk fan and a
hot wire or mechanical (vaned) anemometer* (air velocity measuring
instrument).
Daniel,
The key item which you should have is an anemometer probe. They are
available at reasonable prices. This will allow you to measure airflow at
the power supply under test. A simple box (length several times width and
height to linearize flow) with fans mounted at the outlet end will be all
Dan,
One advantage to giving advice that is outside of the realm of my core
competency is that if I make a fool of myself I hopefully won't get flamed too
bad (Harmonics anyone?)
I am familiar with SCFH (standard cubic feet per hour), SCFM (standard
cubic feet per minute), and LPM (liters
You may consider using a (big) plastic bag, of known volume.
Attach it to the opening where the air comes out.
Using a stopwatch you can find the time to fill the bag.
Now you know air volume per time thru the PSU.
Regards,
Ari
-Original Message-
From: EXT Dan Mitchell
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