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Capacitive fuel level sensor 
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LQFP112 - Up with the play
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Joined: Tue Jan 15, 2008 5:31 pm
Posts: 166
Here's something that came up... a fuel gauge without a float.

http://www.discovercircuits.com/DJ-Circuits/capgage.htm

Looks like it could replace the standard gauge sensor with little effort.


Thu Aug 07, 2008 11:19 am
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1N4001 - Signed up
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Joined: Tue Jun 10, 2008 5:17 pm
Posts: 1607
I got a fuel pump from a motorcycle for my goal of a fuel injected snow blower. The fuel guage appears to simply be a wire in the tank, no float, and typically submerged. I think the circuit you posted is exactly how it was used to measure the fuel level. Thanks for the link, I've been trying to figure out how they used that guage.


Thu Aug 07, 2008 9:50 pm
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LQFP144 - On Top Of The Game

Joined: Sun Jul 13, 2008 2:58 pm
Posts: 331
Location: South Wales, UK
Now that has some cool possibilities for oil level indication using the dipstick with a silicone heatshrink up the majority of the stick with just the tip exposed in the oil.
or water level for intercooler spray, or water/meth injection levels.

Very cool circuit indeed, good hunting!

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Mon Sep 08, 2008 7:01 pm
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