Electromagnetic flowmeter main technical characteristics and applications

Introduction to the working principle of electromagnetic flowmeter and its main technical features and applications.

Electromagnetic flowmeter is a common and widely used flow measurement instrument in the industrial field. It determines the flow rate by measuring the electromagnetic induction signal generated when the liquid flows through the conductive pipe. The following will introduce the working principle, main technical characteristics and application scope of electromagnetic flowmeter.

The working principle of electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. When a conductive liquid flows through an electromagnetic flowmeter, the conductive particles (such as ions) in the fluid will be affected by the magnetic field force, causing movement inside the liquid. At the same time, a constant magnetic field is applied to the induction coil of the electromagnetic flowmeter. When the conductive liquid flows through the induction coil, the movement of charges in the liquid will generate an induced electromotive force, that is, an electromagnetic induction signal. The size of the electromagnetic induction signal is proportional to the flow rate of the liquid, so the flow rate can be determined by measuring the intensity of the electromagnetic induction signal.

The electromagnetic flowmeter has the following main technical features:

High precision: The electromagnetic flowmeter adopts the non-contact measurement principle and is not affected by the properties of the fluid and has high measurement accuracy.

Wide measuring range: The electromagnetic flowmeter is suitable for measuring various conductive liquids and has a wide measuring range.

Strong corrosion resistance: Since the electromagnetic flowmeter is mainly made of corrosion-resistant materials (such as stainless steel), it has strong corrosion resistance and is suitable for the measurement of corrosive liquids such as acids and alkalis.

No pressure loss: The electromagnetic flowmeter adopts a full-tube structure design, and there is almost no pressure loss when the liquid flows through it.

Has automatic correction function: the electromagnetic flowmeter can be corrected based on the measurement data to improve the accuracy of the measurement.

Electromagnetic flowmeters are widely used in various industries such as water treatment, chemical industry, petroleum, metallurgy, and energy. Its application areas include water supply, sewage treatment, flow measurement in industrial production processes, pipeline transportation, etc. Due to its high precision, reliability and adaptability, electromagnetic flowmeter has become an important part of industrial automation control.

In summary, the electromagnetic flowmeter determines the flow rate by measuring the electromagnetic induction signal generated when the conductive liquid flows through the conductive pipe. Its high precision, wide measurement range, and strong corrosion resistance make it widely used in various industrial fields. With the continuous advancement of science and technology, the technology of electromagnetic flowmeter will continue to be improved to provide more reliable and accurate flow measurement methods for industrial production.