What you hope to measure is the difference in hydrostatic pressure
caused by the "column" of fluid in the tank and the same "column" of air
outside the tank.
Almost any connection from sensor to the top of the tank with not-moving
air in it will do, just like with pitot, static and stall warner lines.
Non-moving means no friction pressure drop.
Jan
On 11/28/2013 8:25 PM, GRAHAM SINGLETON wrote:
>
> I don't believe the shape and size of the vent has any influence - the
> air in the vent line(s) hardly moves.
>
> Regards,
> Jan de Jong
>
> But it does have a pressure. That's what we are measuring
> Graham
>
> ------------------------------------------------------------------------
> *From:* Jan de Jong <jan_de_jong@casema.nl>
> *To:* europa-list@matronics.com
> *Sent:* Thursday, 28 November 2013, 18:57
> *Subject:* Re: Europa-List: sight gauge alternative
>
> <mailto:jan_de_jong@casema.nl>>
>
> I don't know whether it was mentioned but the aircraft attitude will
> always have an influence on the fuel level reading.
> The less one succeeds in mounting the sensor right below the center of
> the tank the larger the influence.
> One could measure pitch and do calibrations at several values and
> interpolate.
> I think that goes too far.
> I don't believe the shape and size of the vent has any influence - the
> air in the vent line(s) hardly moves.
>
> -= (And Get Some AWESOME FREE
> Gifts!)http://www.matronics.com/contrsp; -Matt Dralle,
> List Admin.
> > http://forums.matronics=================
>
>
> <http://www.matronics.com/Navigator?Europa-List>
> <http://www.matronics.com/Navigator?Europa-List>
> <http://www.matronics.com/Navigator?Europa-List>
> <http://www.matronics.com/Navigator?Europa-List>
> <http://www.matronics.com/Navigator?Europa-List>
> *
>
> *
|