What is the hydraulic method of level measurement?
What is the hydraulic method of level measurement?
Hydrostatic level measurement is a dependable way to find out how high liquids are in tanks, containers, or reservoirs. It works by using hydraulic pressure. It works on the basic idea that the pressure of a column of liquid is directly related to its height and density. This is shown by the equation P = ρgh, where P is the hydrostatic pressure, ρ is the liquid density, g is the acceleration due to gravity, and h is the height of the liquid.
In real life, hydrostatic level transmitters, which are specific sensors, are put in the liquid at the bottom or submerged. These transmitters check the pressure of the column of liquid. Differential pressure transmitters are used to measure the pressure of gas or vapor above the liquid in closed or pressurized tanks.
In many fields, including water treatment, oil and gas, chemical processing, food and drink, and power generation, hydrostatic level measuring is utilized a lot. It is reliable, strong against foam or turbulence, cheap, and easy to use. However, it needs to think about the density of the liquid and be cleaned often to keep the sensors from getting dirty.