Paul wrote:

norm doty wrote:

there is an article in this months kitplanes i believe its by jim were ( i
know i spelled it wrong) his layout is for a capacitive sensor, no moving
parts, just 2 alum plates in the gas and connected to the little board he
designed.

Norm & Monda
Cozy MK IV #202
Ford V-6 Powered

Scott Gettings wrote:

This article was because several of us built the "old" version, circa 1989, and
found that it would not work very well.   It also required a very large plate.
There are a number of posts to the thread on "capacitive fuel gauges" on
rec.aviation.homebuilt.

So Jim graciously re-designed the unit and sent it in to kitplanes.  One of the big
changes is that a much smaller sensor plate is now used, that might fit in a small
tank, a sending "tower", or even with a pair of plates along the spar of a long,
thin wing tank.  Only need about 50" square with the new version.

I've also often wondered why a sensitive pressure sensor mounted at the bottom of a
tank, with a reference sensor at cabin pressure, could not be easily calibrated to
give direct fuel quantity readouts from any tank.

Jim's site is rst engineering, but his kitplane articles are at:

http://www.rst-engr.com/kitplanes/

Scott Gettings 

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