> -----Original Message-----
> From: Jeremy Darling [SMTP:jdarling@ASKPIONEER.COM]
> Sent: Wednesday, July 16, 2003 2:15 PM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: [OT]: Basic theory of a fuel gauge
>
> I would be willing to bet that if you pull the battery
> and then add fuel to the vehicle that the gauge would
> not move.
>
Err..probably not seeing as the gauge is electricaly driven!

        You would be correct in thinking that.  In the old days the tanks
were
        baffled to make the measurement more accurate.  Today they slow down
the
        polling of the sensor and then average it with the last few results
to
        create a more realistic measurement.

In the old days most fuel gauges used a hot wire movement, whose very slow
response time effectively integrated the senders output.

Mike


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