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Date: Tue, 10 Aug 2004 09:11:30 -0400
From: echristley@nc.rr.com
Subject: Re: [FlyRotary] Re: returnless fuel system
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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----- Original Message -----
From: John Slade <sladerj@bellsouth.net>
Date: Tuesday, August 10, 2004 7:56 am
Subject: [FlyRotary] Re: returnless fuel system

> >In any event, while I will still leave the
capacitive probes in place
> I have the same issue. Readings from my
capacitance senders are all 
> over the
> place and I'm installing the EM2, so I'm wondering
if the RV 
> senders will
> fit in a Cozy. Vans has no pictures on the web
site. Does anyone 
> have a
> picture of one of these babies? Will they work in
a Cozy tank? Do 
> they go in
> from the side or the top?
> John Slade (Turbo promised to ship from Oz today).
> 

The answer for capacitive fuel level sensors with
auto fuel is to have two.  One on the bottom of the
tank that is always submerged and the other up the
side to sense the level.  One plate should be
electrically commmon between the two probes, and
both should be identical otherwise.  Use a bridge
circuit to detect the difference between the two values.

I don't have a circuit drawn out, just the read of
the concept on another list.