Problems with level float level gauges
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Dear experts: Hello. Does the light medium in a float level gauge used for measuring level exert any buoyant force on the float? What is the reason?
According to Archimedes’ principle, objects immersed in a fluid experience buoyancy. Even air has buoyancy; let alone liquids
The zero point of the float level gauge is the full liquid level with the light medium, while the full scale is the full liquid level with the heavy medium. How can there be no buoyancy? Without buoyancy, what’s the point of measuring the level at all?
It’s not that there’s no buoyancy; isn’t the value for a light medium zero?
The principle behind using floats to measure liquid levels is based on the fact that both light and heavy fluids exert buoyant forces on the float; both types of fluids do produce buoyancy, though the magnitude of this buoyant force varies
Look for the manual of the float; it explains everything in detail. The principle is very simple: there’s a float hanging inside the buoy. The density of this float is generally high, greater than that of the medium being measured. When measuring the level. At zero point, the float is filled with a light medium, resulting in less buoyancy for the float. At full scale, the heavy medium is completely filled, providing greater buoyancy for the float. However, the buoyant body has a higher density than the medium, so it remains submerged in the medium.