[aprssig] water level gauge for APRS
noskosteve at yahoo.com
Mon Oct 5 07:47:35 CDT 2015
COOL! A little good research goes a LONG way... I did wonder how the flow volume was obtained, but no more.
Regards, Steve Noskowicz
Science & Technical Advisor
On Mon, 10/5/15, Rick Widmer via aprssig <aprssig at tapr.org> wrote:
Subject: Re: [aprssig] water level gauge for APRS
To: aprssig at tapr.org
Date: Monday, October 5, 2015, 6:46 AM
On 10/4/2015 11:18 PM,
Steve Noskowicz via aprssig wrote:
> I don't know if this gives anyone
friend has a very clever commercial fuel tank guage in his
boat. I had the web page for it, but not now...
> A tube in the tank goes to the bottom, but
is open on the bottom.
> A hand pump
pumps air into the tube.
> An analog,
barometer-style mechanical pressure guage (just like on a BP
cuff) on the pump shows the pressure at the pump and,
therefore, top of the tube.
> When the
tube bubbles out the bottom, the pressure stops building and
you read the depth. The guage is calibrated for the
liquid. I did the calculations for water and compared my
results with the pressure guage on my sphygmomanometer (BP
> Pretty slick.
> Paper describing in more detail
Looks like you nailed it...
aprssig mailing list
aprssig at tapr.org
More information about the aprssig