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Chris Elmore wrote:
~
>Paul,
>      As long as the area for exhausting the gas is larger than the 
>area feeding the gas you should maintain an ambient pressure around 
>the sensor. This would not be the case if the flow was great enough 
>that resistance around the exhaust ports caused a back pressure. 
>Certainly there may be micro-changes in pressure as you would get 
>with any compressible fluid flow but these are not great enough to 
>be significant. The sensors aren't designed for use above 1atm and 
>by keeping the flow reasonable and using a vented adapter the area 
>around the sensor stays at ambient pressure. Unless you're blasting 
>gas through the line the error from pressure is negligible.
>C.

Chris, I'd love to believe you, because it means I can use a cheaper 
and smaller setup.  However, I hope you don't feel offended by my 
asking for more data.  This could be serious issue if a mistake is 
made.  I don't have a variety of sensors and flow meters and 
restrictors at my disposal to check this stuff out.

Cheers.
-- 
Paul Braunbehrens mailto:Bakalite@ba*.co*
http://www.daw-mac.com Mailing list for digital audio on the mac
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