M.L. <m <at> lkeng.net> writes:

> I had thought of many possible Rube Goldberg style ideas, but my
> primary objective is to figure out the efficiency of my heat
> exchanger, not to test flow rate.
> Paddle wheels and propellers are pretty common in this arena, but this
> is the first I've heard of NMR for flow rate.
>=20
NMR was for a very specific application, and flow rate measurement was a si=
de
benefit.  The application was detection of individual bacteria, labeled wit=
h
magnetic material.  Besides, it's a bit hard to put a paddle wheel inside o=
f a
100 micron tube. =20

BTW, I am all for the Rube Goldberg or Heath Robinson style ideas, especial=
ly if
it is for fun, not for a commercial application.=20

It was a good question and a lot of good answers.  I can see some applicati=
ons
in my future where I will need to measure flow in 1/2 - 1 inch pipes, I wil=
l
keep this discussion in mind.=20

Sergey Dryga
http://beaglerobotics.com



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