In Reply to: RE: He is right but is referring to low level detail posted by josh358 on October 5, 2012 at 05:35:30:
look at the young modulus for PETs :2-2.7 vs aluminum 69 GPa.
The air resistance is linear to velocity/proportional to rate of strain, at 50 db spl at the membrane we are talking 0.02 Pa. peak membrane speed would be about 20 u m/s. We can figure out what the pressure equivalent of the perforated plate's resistance would be.
What I am saying is that the limiting factor dominating resistance to diaphragm motion is different at various output levels. That any of them is linear does not matter since there is a different slope at each level.
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Follow Ups
- RE: He is right but is referring to low level detail - Satie 13:54:51 10/05/12 (3)
- RE: He is right but is referring to low level detail - josh358 12:04:42 10/07/12 (2)
- RE: He is right but is referring to low level detail - triamp 14:14:29 10/12/12 (1)
- RE: He is right but is referring to low level detail - josh358 08:00:53 10/14/12 (0)