Calculating Gasflow (CFM) with Pressure (PSI) and Sound (dBuV)

AI Thread Summary
Calculating gas flow (CFM) using pressure (PSI) and sound (dBuV) is complex due to the numerous variables affecting sound measurements. Each application requires calibration, making it essential to know the CFM beforehand for accurate calculations. The ultraprobe 9000 is mentioned as the hardware for tracking air leaks, but sound alone cannot reliably determine gas flow. Therefore, a direct formula linking these variables without prior calibration is not feasible. Accurate tracking of air leaks will necessitate a tailored approach for each specific scenario.
sEngineer
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Hi,

Is it possible to calculate gasflow(cfm) given pressure(psi) and sound(dbuv). I am writing some software to report and track air leaks and the hardware the user will be using is the ultraprobe 9000.

Thanks and I appreciate any information.
 
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Any Ideas??
 
No. Sound depends on so many quantities that it would differ for every application. You would need to essentially calibrate your equation for every separate application you are applying it too, and that would require knowing the CFM to begin with.
 

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