How Does Bubbler Level System Work

The level bubbler functions by forcing a gas (compressed air) at a near constant flow rate out the bottom of an open tube (dip tube) submerged in liquid. The back pressure in this tube is measured. With the liquid’s density known, the level can be calculated using the back pressure and density.

How does a bubbler level work?

The level bubbler functions by forcing a gas (compressed air) at a near constant flow rate out the bottom of an open tube (dip tube) submerged in liquid. The back pressure in this tube is measured. With the liquid’s density known, the level can be calculated using the back pressure and density.

What is the bubbler system?

Bubbler systems are used to measure water level by detecting the pressure required to force air through a submerged tube. The tube is mounted with the end of the tube below the water surface being measured, and the air emerges from the bottom of the tube as a stream of bubbles.