What kind of level gauge is generally used to measure the separation interface between the aqueous phase and the oil phase?

When the sensor of a magnetostrictive level gauge is in operation, its circuitry generates a pulsed current in the waveguide wire; as this current propagates along the waveguide wire, it creates a pulsed magnetic field around it. A float is attached to the sensor rod of the magnetostrictive level gauge; this float can move up and down along the rod as the liquid level changes. Inside the float, there is a set of permanent magnet rings. When the magnetic field generated by the pulsed current meets the magnetic field of the magnetic ring produced by the float, the magnetic field around the float changes, which causes a torsional wave pulse to be generated in the waveguide wire made of magnetostrictive material at the location of the float. This pulse travels back along the waveguide wire at a constant speed and is detected by the detection mechanism. By measuring the time difference between the pulsed current and the torsional wave, the position of the float, that is, the level of the liquid surface, can be determined with precision. Technical advantages of magnetostrictive level gauges: Magnetostrictive level gauges are suitable for measuring liquid levels with high precision, achieving an accuracy of 1 mm; the latest models can even reach an accuracy of 0.1 mm. Magnetostrictive level gauges can also be used to measure the interface between two different liquids. It features an explosion-proof design, making it suitable for hazardous environments. Its intelligent electronic circuitry allows for the calculation of volume. The only moving part is the float, resulting in extremely low maintenance requirements.

There are also many types of oils. Conditions such as temperature, pressure, density, equipment, and stratification should all be specified. . If it were that simple, even middle school students could do design work.

Yes, exactly. I saw this question in a communication group and was very curious, so I asked on the forum. Such measurements are mainly used for crude oil, right?

First of all, that type of instrument used to measure the level boundary is not called a level gauge; it is called a level detector or interface gauge. There are ready-made versions of such instruments; a more reliable type is the float-type level gauge designed based on the density difference between the two phases, which relies on there being a certain difference in their densities. Crude oil dehydration is one of its applications; it is also required in other fine chemical processes that involve reactions of adding water or separating water.

There are instruments that can measure the level boundary, and a small number of radar level gauges have the capability to measure both the liquid level and the level boundary

Commonly used ones include radar level gauges with guide rods and double-flange level gauges; radar gauges offer high precision, while double-flange gauges have lower costs. Magnetostrictive level gauges are used relatively rarely; they require high standards for the oil phase, but they offer high precision. Radar and double-flange types have relatively low requirements for the medium. There are many level gauges used in industries such as oil refining and lipid chemicals.

Due to the presence of the mixed-phase layer, and since its thickness is constantly changing and not a fixed constant, errors such as inaccurate measurements, misplacement, and wrong positioning of the interface can often occur. How can one identify the mixed-phase layer to avoid incorrect sorting and placement? Our factory’s online density meter, Shuai Ke, really shows off its capabilities – it’s truly outstanding

Using strategic attacks, with pig’s hands to measure density – the chances of success are high, and nothing can go wrong. :lol

Radar has a high level of precision. Radar madman, intermittent neurosis — reporting full tanks as empty, and empty tanks as full; plus acting dead and not moving when there’s noise in the readings. When the radar gives a false alarm, the error is 100% of that of the Tamab pen. The so-called instrument accuracy first requires good temporal stability. Radar has a high level of precision. :lol

Double flange or magnetostrictive types require a certain density difference between oil and water. It is said that radar or admittance can also be used to measure interfaces; I haven’t tried it myself.