Quote Originally Posted by KaptCrunch View Post
Martin you forgot to moniter fan noise with a dB meter

Great to see you came out of the closet......again.....J/K

I knew the tinker in you wouldn't stay to dominant

welcome back
Thanks!
I'm still trying to figure out how to do that one. These 1000RPM fans are soo quiet, I think I need to run some sort of separate test mounted on a radiator and just measure voltage again. I struggle with having a sound testing compatible environment too. Somehow the 5 year old and 2 year old don't seem to understand the importance of science just yet...

Sound is always one of those subject things too that db alone doesn't do it justice. My thought is something like mount the fan to a radiator, then video record the ambient level, and change in sound level while recording both the sound itself an video recoding the varied voltage. This way you'd get the sound level numbers and the sound quality itself measured. In addition, you'd capture noise generated by vibration/etc on the radiator.

To me, open air flow sound level measurements as we get in the specs is pretty meaningless and too hard to capture in a noisy environment. On a radiator though, I think I can measure something there...maybe.

But, yes...I will do something along those lines...that's "Part 2", part 1 is this P/Q curve thing.