🚀 go-pugleaf

Tom W wrote:
> 
> Thanks, I read the article and still have some questions. First let me say
> that I didn't understand most of the article. Most of what you mentioned
> happens inside the electronic indicator. I am more interested in what
> happens in the external circuit. I would like to know what the comp probe
> does, what low z and high z mean and what happens when you remove one probe
> in a parallel circuit. Will the cap drop or increase.
> Thanks for your help. See you later.
> Jim Weir wrote in message <3718a7ee.2581418@news.gv.net>...
> >"Tom W" <Tommy.D.Wippert@worldnet.att.net>
> >shared these priceless pearls of wisdom:
> >
> >->Could someone tell me how an aircraft fuel capacitance system works.
> >
> >Go to www.rst-engr.com and download the Kitplanes article I wrote on making
> >a capacitor fuel gage system.  Read the technical description, then come on
> >back and see if we can fill in the blanks that are still left.
> >
> >Jim
It has been a while so I may be mistaken.

Compensator:  Compensates for the changes in fuel density and the
resulting change s in impedence due to temperature changes.

Low Z:  Calibration point for empty tanks (gauge reads 0)

High Z: Calibration point for full tanks (gauge reads full)

Loose a probe and fuel system gives a false low reading due to the
reduction in total capacitance.

-Seth