[simpits-tech] Pneumatic controllers

[Phoenix2000 at phoenixcomm.net]

Mat It can be done.. its not that hard if you can write some code for a 
microp. your choice

1. get a small vacuum pump with a tank...  if you want to go to 10,000 feet 
du I don't know the pressure or lack there off, any way...
2. you need two electrically controlled valves one for a bleed orifice to 
increases pressure ( you are desending) and you gessed it another for vacumm.
3. you will also need an electrical pressure
sensor so the system knows its pressure..

That's it.. just do the plumbing....

Cheers
Happy Simming
Cris Harrison
www.phoenixcomm.net/~phnx2000/sim



At 02:34 AM 2/25/2005, you wrote:
>Howdy,
>
>    I recall some time ago a discussion about setting up a closed pressure
>system to control real altimeters and VSI's, using electronic pneumatic
>controllers (in fact I still have a video on my HD of an altimeter being
>controlled in this manner). I was just wondering if anyone had any info on
>this, like what kind of controllers are required, what kind of signal they
>use, how they function, etc.
>
>         -Matt Bailey
>
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