2021-01-24, 06:55 PM
(2021-01-24, 08:00 AM)Sailabout Wrote: I do not know what is your purpose but I could give you an example: measuring the level of a liquid in a tank. A tube is placed in the tank, nearly touching the bottom. A small hand or electrical air pump is placed at the other side of the tube, together with a pressure sensor (BMXxxx). The pressure will be determined by the liquid height above the lower aperture of the tube when air is pumped in. . . .
Okay what if the BMXxxx was in for example a small sealed container with air, or a ziplock bag without air. Would it be able to read the pressure increase as it descended in water? Is it "air" pressure that it reads or is it pressure?