Sound Intensity Measurement
Sound Intensity Measurement
(OP)
Hi all,
If anybody can guide me about how to Calculate(predict) SPL at 1 m from the surface from Sound Intensity measurements. Basically I am trying to predict SPL(dBA) around motor at 1 m at left, right and rear side. Any spread sheet or guide will be much appreciated.
Thanks
ahfa
If anybody can guide me about how to Calculate(predict) SPL at 1 m from the surface from Sound Intensity measurements. Basically I am trying to predict SPL(dBA) around motor at 1 m at left, right and rear side. Any spread sheet or guide will be much appreciated.
Thanks
ahfa






RE: Sound Intensity Measurement
Walt
RE: Sound Intensity Measurement
Ahfa
RE: Sound Intensity Measurement
Walt
RE: Sound Intensity Measurement
Let Sm= Surface of the motor
Let Sp= Surface of a hemi-sphere = 2*pi*R^2=6.28
As Walt said,you can know Lw (Sound power Level) Lw=Li + 10*log10(Sm)
On the other hand, Lw= Lp + 10*log10(Sp)
So Lp=Li + 10*log10(Sm) - 10*log10(Sp)
RE: Sound Intensity Measurement