How much do you know about electromagnetic flowmeters?

Case introduction

Electromagnetic flow meter is also called flowmeter. Flow measurement is a science that studies the change of material quality. The law of mass mutual change is the basic law of the development of things. Therefore, its measurement objects are not limited to pipe liquids in the traditional sense. Wherever quantitative changes need to be mastered, there are problems with flow measurement. Flow, pressure, and temperature are listed as the three major detection parameters. For a certain fluid, the energy it has can be calculated as long as these three parameters are known. These three parameters must be detected in the measurement of energy conversion. Energy conversion is the basis of all production processes and scientific experiments, so flow, pressure, and temperature instruments are widely used.

Electromagnetic flowmeters are widely used in industry, agriculture and other fields. In industrial production, electromagnetic flowmeters can be used to measure the flow of gas, liquid and steam to control the process and improve production efficiency. In agricultural production, electromagnetic flowmeters can be used to measure water flow to control irrigation systems and improve irrigation efficiency.

Electromagnetic flow meters are based on Faraday’s law of electromagnetic induction. The electromagnetic coils at its upper and lower ends generate a constant electromagnetic field. When a conductive medium flows through it, an induced voltage is generated between the two coils and the electrodes. By converting the voltage, the current flow rate of the electromagnetic flowmeter medium is obtained.

The advantage of electromagnetic flowmeter is that it can measure the flow rate of the medium, and it has the advantages of accurate measurement, safety and stability, and easy maintenance. It should be noted that the electromagnetic flowmeter cannot measure the flow of non-conductive media, and the price is relatively high.

Smart electromagnetic flowmeter consists of two parts: sensor and converter. It works based on Faraday's law of electromagnetic induction and is used to measure the volume flow of conductive liquids with a conductivity greater than 5uS/cm. It is an inductive instrument that measures the volume flow of conductive media. In addition to measuring the volume flow of general conductive liquids, it can also be used to measure the volume flow of highly corrosive liquids such as strong acids and alkalis, and uniform liquid-solid two-phase suspension liquids such as mud, pulp, and paper pulp. It is widely used in flow measurement in petroleum, chemical industry, metallurgy, textile, papermaking, environmental protection, food and other industrial sectors, as well as in municipal management, water conservancy construction, rivers and other fields.