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Date: Mon, 25 Feb 2002 09:22:02 -0500
From: Bill Hayes <bill@endevoursystems.net>
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To: lancair.list@olsusa.com
Subject: Re: VM Fuel probes
References: <3C77C3E4.D72141FE@optonline.net>
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          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> 
>>
You can supply power and ground to the probes. If you use and oscilloscope
you will see a square wave output. Now using capacitors between the center
conductor and the outside of the probe you will see a change in the
frequency of the square wave output. For most applications you will need to
convert the pulses to a voltage or current. There are many good digital to
analog converters available for this purpose.

Adam Molny wrote: 

> Does anybody know how the Vision Microsystems fuel probes are wired
> internally? I would like to bench test them without the indicator gauge,
<SNIP>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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Please send your photos and drawings to marvkaye@olsusa.com.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>