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Description of electromagnetic flowmeter performance and applicable occasions

An electromagnetic flowmeter is a meter that measures the volume flow of a conductive liquid using Faraday's electromagnetic law. In recent years, the development speed is relatively fast, and the global production in 1995 is estimated to be more than 130,000 units. The advantages and disadvantages are as follows:
Since the measurement pass is a smooth straight tube for unobstructed flow detection (inspection and testing), it is not easy to block and is suitable for measuring liquid-solid two-phase liquids containing solid particles or fibers, such as pulp, slurry, etc.
The measured volume flow (unit: cubic meters per second) is not affected by changes in fluid density (unit: g/cm3 or kg/m3), viscosity, pressure, etc.;
The requirements for straight pipe sections are not higher than other flows (unit: cubic meters per second);
It can measure positive and negative bidirectional flow (unit: cubic meters per second), can also measure pulsation flow, and can be applied to corrosive and aggressive fluids;
Cannot measure liquids with very low conductivity;
It is not possible to measure gases, vapors, and liquids containing large bubbles. The sewage flow meter consists of two parts: an electromagnetic flow sensor and a converter. It is based on Faraday's law of electromagnetic induction and is used to measure the volumetric flow of conductive liquid with conductivity greater than 5μS/cm. It is an inductive instrument for measuring the volumetric flow of conductive media. Electromagnetic flowmeters In the 1950s and 1960s, new flow measuring instruments developed rapidly with the development of electronic technology. The electromagnetic flowmeter is an inductive meter manufactured according to Faraday's law of electromagnetic induction for measuring the volumetric flow rate of a conductive medium in a tube.
At present, electromagnetic flow (unit: cubic meters per second), its large-diameter instruments are mostly used in water supply and drainage engineering (Engineering), medium and small caliber are often used for solid-liquid double equal unpredictable fluids, or high-demand places. In addition to measuring the volume flow of general conductive liquids, the sewage flow meter can also be used to measure the volumetric flow rate of strong corrosive liquids such as strong acid and alkali, and uniform liquid-solid two-phase suspension liquids such as mud, slurry and pulp. Widely used in petroleum, chemical, metallurgy, textile, paper, environmental protection, food and other industrial sectors and municipal management, water conservancy construction, river dredging and other fields of flow measurement. Such as industrial pulp, pulp, chemical industry, strong corrosion erosive liquid. Small caliber and small caliber are often used in places with hygienic requirements such as the pharmaceutical industry, food industry, and bioengineering.

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