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sound waves calculation of pressure

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发表于 2009-9-16 00:35:20 | 显示全部楼层 |阅读模式
sound waves & calculation of pressure
dear members ,
pl. help me to the calculation of sound pressure from  a given 160 desibles.
thanks in advance.
kvram.
if the value of reference for db is
p0=20·10^-6 pa
then the equation that gives p from the level of pressure in db (=150) is
150=20·log(p/p0)
that solved gives
p=632.465 pa   
or
p=6.449·10^-3 kgf/cm^2
and 160 db=3000 pa, roughly. grin
cheers
greg locock
2000 pa
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