How to know the level of a tank by displacing the liquid

[Fernando Franco]

Hi friends,

I have the following problem, I know there is a system named bubbler level gauge, it works by measuring the required pressure to displace the liquid inside a tank.

My known data is:

the height of the tank
The Diamater
The Density of the liquid
The Volume of the tank

Let's say I place a differential pressure sensor and I read the required pressure to displace the liquid, how can I know the level of the tank ? there must be a formula to determine when the tank is full, or 50%, knowing the pressure required to displace the water

(please take a look at the following image)

 

[billy_joule]

Are you familiar with Pascal's law?

 

[Fernando Franco]

Are you familiar with Pascal's law?

Not much, do you have a formula my friend?

 

[billy_joule]

A quick google will find it for you.
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