Re: Manometer

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Yurtle Turtle by way of Terry Fritz <teslalist-at-qwest-dot-net>" <yurtle_t-at-yahoo-dot-com>

Or if you're really picky, water weighs 62.43 pounds
per cubic foot. Since there's 144 square inches in a
square foot, that's 62.43/144 = .4335 psi per foot.

However that's only relative pressure. If you want
absolute pressure you have to account for atmospheric
pressure.

Adam

--- Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: "Jim Lux by way of Terry Fritz
 > <teslalist-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>
 >
 > 1 atmosphere is about 30 feet of water .. 1/2 psi
 > per foot of water column,
 > or 24 inches/psi
 >
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Monday, July 14, 2003 8:03 PM
 > Subject: Manometer
 >
 >
 >  > Original poster: "J. B. Weazle McCreath by way of
 > Terry Fritz
 > <teslalist-at-qwest-dot-net>" <weazle-at-hurontel.on.ca>
 >  >
 >  >
 >  > Hello Coilers,
 >  >
 >  > I finally got around to rigging up a manometer to
 > measure the pressure in
 >  > my hyperbaric gap.  I used "oxygen tubing" that I
 > obtained from a doctor
 >  > friend and made a U loop of about 18 inches
 > secured to a piece of wood.
 >  >
 >  > I put some water in the tube, marked the static
 > position, then turned on
 >  > the vaccuum cleaner compressor.  Much to my
 > amazement, it proceeded to
 >  > blow the water completely out of the tube!  I've
 > obviously got a lot
 >  > more pressure than I thought!!
 >  >
 >  > Does anyone know what the relationship between
 > inches of water and actual
 >  > pressure in PSI is?  I know what it is for
 > mercury, since altimeters and
 >  > barometers commonly use it, but I can't find any
 > info on water.
 >  >
 >  > 73, Weazle, VE3EAR/VE3WZL
 >  >
 >  > Details of my "Hyperbaric Gap" and Tesla coil are
 > at:
 >  > http://www.hurontel.on.ca/~weazle
 >  >
 >  >
 >
 >


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