Thread Content
Liquid level: how is it calculated? Is it related to density and volume?
It’s funny; of course there’s a connection, plus temperature too
What level, already what?
Mass = density * volume = density * area * height (liquid level). Then, by using this formula, it should be possible to determine the height (liquid level).
In the case of single-flange or double-flange differential pressure, the differential pressure value = specific gravity of the medium being measured * g * liquid level height
Liquid level, calculation – it’s probably float type, single-flange, or double-flange sensors; these are all included in the test question sets for instrument technicians, so go and download them to study
Liquid level is simply the liquid level; it has nothing to do with volume. The liquid level in a container with a small opening being 1 meter is the same as the liquid level in a swimming pool being 1 meter – there is no difference. It is only relevant to the specific gravity of the medium when measuring liquid level using the differential pressure method. The relationship is ΔP = (P+) – (P–). In the case of a container at atmospheric pressure, without any isolating fluid and without any need for migration, we have: ΔP = (P+) – (P–) = H × ρ × g – 0. When the density remains constant, ρ and g are constants; thus, there is a linear relationship between the differential pressure and the liquid level height.
It’s sufficient to install a suitable testing instrument; there’s no need to do the calculations oneself
Install a differential pressure gauge so that you can read the values on it yourself