Air Flow Measurement

[tom cloud]

>>	Specifically, I am wondering if anyone has looked into using a 
>differential-pressure manometer to calculate air flow.  This manometer 
>could be located in the same location as GM puts its heated-wire 
>mass-air-flow sensor.  Any thoughts/comments?
>
>>(FYI - Air flow could be calculated from a differential pressure manometer 
>by measuring air pressure in an appropriately sized (perhaps 4 inch dia.) 
>venturi located before the throttle plates.  Air velocity through the 
>venturi throat is related to the difference in pressure between the venturi 
>throat and the pressure before the venturi.  Air velocity is thus used 
>(along with air temperature) to determine total air mass flowing into the 
>intake system.)
>
>
>You still need a measure of density to determine mass flow rate, even
>if you know the 
>
>begin 600 WINMAIL.DAT
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>M& ```$E032Y-:6-R;W-O9G0 at 36%I;"Y.;W1E`#$(`0V ! `"`````@`"``$$
>MD 8`9 $```$````,`````P``, (````+``\.``````(!_P\!````8P``````

Anthony, can't you speak English ?  I'd like to read this ... it's
like watching 'X' files and having it TO BE CONTINUED !!


Tom Cloud <cloud at peaches.ph.utexas.edu>