Given the pressure range I'd like to have, mercury would be far better,so I think I'll drop it all in favor of
this Gizmo (at Since87's suggestion).
Quote:
All you do is
-amplify the output of the sensor.
-Run the amplified output into a square root circuit.
-Run the output of the square root circuit into a voltage to frequency converter.
-Run the output of the voltage to frequency converter into the RPM input for the CPU HSF.
-Make sure all of your scaling is right.
When Motherboard Monitor tells you that your fan RPM is 1422, you know that actually means that your flowrate is 1.422 gpm. (+/- whatever)
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More planning to do.