i finish my Gas turbines ecu and thanks to all picbasic help..
I start a new project for Hydrogen for car..
i need help about water level with picbasic and pressure sensor .
if some one have Idea please send info to start.
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i finish my Gas turbines ecu and thanks to all picbasic help..
I start a new project for Hydrogen for car..
i need help about water level with picbasic and pressure sensor .
if some one have Idea please send info to start.
Height of a column of liquid.
H = P*2.307 / SG
H = height in feet
P = Pressure in PSI
SG = Specific Gravity, 1.0 for water.
HTH,
When you pick out the pressure sensors, the ones that output in volts are easy to use with PBP and PICs. 1 volt will be 0psi and 5 volts will be the high psi the sensor is designed for. This makes things easy for the ADC on the PIC.
Darrel must have some hidden meaning in his formula.
For every foot rise in a column of water 0.433 pounds at the bottom will show on a gauge. So...
H = P / 0.433 * SG
If you are new to hydrogen, please take a look at this
http://www.nationalboard.org/nationa...classic29.aspx
http://www.nationalboard.org/Nationa...query=hydrogen
Hydrogen is very hard to store safely. Not because of the flammability, it attacks the carbon in steel!!! Vessel failure!!!
Nothing hidden. 2.307 is the reciprocal of .4335Quote:
Originally Posted by mackrackit
Either way gets the same result.
However, I believe you need to divide by the specific gravity, instead of multiply. Not that it matters with an SG of 1.0
Here's an interesting article.
Liquid Level Measurement
http://www.dynisco.ch/literature/Tec.../TechNote8.pdf
My mistake, been a long day, :oQuote:
Originally Posted by Darrel Taylor
But my concerns about H storage are valid. Even with agriculture grade NH3 problems come up, and they are H related. Twenty years of playing with this crap has made me gun shy and maybe a bit of an old hen. Be CAREFUL jetpr.
Thanks to all help
when finish i post every in this place.