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Stigma · 06-19-2004, 12:49 PM

I am interrested in the same, beeing able to measure the preassure in of my water system.

I was considering using a simple unit that you can find in many OC webshops:
http://www.microplex.no/rubweb/varer.asp?ARTNR=AC53021
It allows water circulation to be translated to rpm, and input on a regular fan sensor.
More water pr. sec = the turbine spins faster = more rpm.

But, am I correct in assuming that if the turbine spins twice as fast as earlier, the preassure has also doubled? is it linear like that? If so, it would only be a matter of finding out how many rpm = 1psi, and you could easily calculate it from there. You need to have some real equipment to find out the rpm/psi ratio first though =/

-Stigma

EDIT:
Huckleberry, (pure)water is not very conductive, but it IS very affected by magnetic fields. This is because water molecules are polarized (one side of the molecule has a significantly more positive side, and the other has a significanly more negative side). If you've been through basic chemestry, you might remember =) In other words, you shouldnt have problems with water.

microwave ovens are actually based on the whole fact that water is very easily affected by magnetic fields.

06-19-2004, 12:49 PM	#6
Stigma Cooling Neophyte Join Date: Jun 2004 Location: Bergen, Norway Posts: 7	I am interrested in the same, beeing able to measure the preassure in of my water system. I was considering using a simple unit that you can find in many OC webshops: http://www.microplex.no/rubweb/varer.asp?ARTNR=AC53021 It allows water circulation to be translated to rpm, and input on a regular fan sensor. More water pr. sec = the turbine spins faster = more rpm. But, am I correct in assuming that if the turbine spins twice as fast as earlier, the preassure has also doubled? is it linear like that? If so, it would only be a matter of finding out how many rpm = 1psi, and you could easily calculate it from there. You need to have some real equipment to find out the rpm/psi ratio first though =/ -Stigma EDIT: Huckleberry, (pure)water is not very conductive, but it IS very affected by magnetic fields. This is because water molecules are polarized (one side of the molecule has a significantly more positive side, and the other has a significanly more negative side). If you've been through basic chemestry, you might remember =) In other words, you shouldnt have problems with water. microwave ovens are actually based on the whole fact that water is very easily affected by magnetic fields.