Recent content by Mark Selvey

I think constant mass will work for me also. Outside presure on container will be Atmospheric pressure, inside will be atmospheric plus .216 psi. Thanks again guys

Thanks Boneh3ad I will try your final equation and see if the results are consistent with how the machine is responding . Thanks for the help

Maybe a better description will help. This involves a machine that is used to detect a leak in a container on a production line. The machine needs to have test parameters ( Pass/Fail ) setup in order to detect holes. The standard is the machine must detect a .010 dia hole. It has a...

Boneh3ad. No air is added to the container after the target pressure is reached. When the orifice is open, the pressure will drop along with volume dropping.

Bruce The container is pressurized to a target of 6" WC. Once the transducer sees the target has been reached, the fill valve closes and the orifice opens. 2.8 seconds later, the transducer takes another measurement and compares the 2 to determine pressure drop. My problem is, I do not have...

Hello New to the forum and have a fairly simple problem. I am looking for help in building an equation for volume lost in a container. Example. Known variables: Container has a volume of 44 fl oz Container will be pressurized to 6" of water column. Container has an orifice with...