Re: Need simple equations for vibration motion
- From: "Robert A. Macy" <macy@xxxxxxxxxxxxxx>
- Date: 11 Jan 2006 09:55:57 -0800
Brian,
Thank you again, but the material is only 170 pounds per cubic foot,
not steel.
But with only 2.8 psi, 5 mils is perfect. right?
How do you go from 2.8psi causing 5 mil deflection to 1 Watt of sound
will only deflect 0.5 mils, not my estimate of 5 mils?
Perhaps, I should state that the sound power is not transferring from
air to the diaphragm, but the diaphragm is being driven by a piezo
transducer.
2.8 psi across the diaphragm is a relatively small number, yes? I mean
I've worked with poisonous gas cannisters that were 2,000 psi. Don't
airless paint sprayers put out a whopping 400-800 psi, at least enough
to inject into flesh? Water pressure at my home was 63 psi. So, 2.8
psi is small.
These answers are EXTREMELY helpful. So far I'm within a magnitude of
accuracy, would like to get closer to more like 10% though. Greatly
appreciate the help.
- Robert -
.
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