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    The company's main flow meter, level meter, and pressure controller, temperature controller, analytical instruments and other various types of instrumentation. To solve all kinds of problems, and provide complete sales service for customers with professional technical point of view.
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Magnetic Flow Meter Working Principle

Date:2024-04-12 source:Shanghai JSN Micro Flow Meter CO.,LTD

Email:sales01@cxflowmeter.com

whatsapp:008618049841995



How does the electromagnetic flowmeter work?


The working principle of electromagnetic flow meter is based on Faraday's law of electromagnetic induction. In the electromagnetic flow meter,

 the conductive medium in the measuring tube is equivalent to the conductive metal rod in the Faraday test, and the two electromagnetic

 coils at the upper and lower ends generate a constant magnetic field. When a conductive medium flows through, the conductive liquid 

moves in the magnetic field and cuts the magnetic field lines, and an induced electromotive force E perpendicular to the direction of

 movement and the direction of the magnetic field will be generated at both ends of the conductor. This electromotive force is proportional 

to the flow rate V of the conductive liquid, that is, E = BLV (where B is the magnetic induction intensity, L is the length of the conductor, and

 V is the speed of cutting the magnetic field lines).

电磁流量计 (6).jpg



Electromagnetic flowmeters determine the flow of conductive liquids by measuring the induced electric potential generated on electrodes 

on both sides of the pipe. Since the induced potential is proportional to the flow rate, the flow rate of the fluid can be deduced by measuring

 the induced potential.


This measurement method has many advantages. For example, the measurement accuracy is not affected by changes in fluid density, 

viscosity, temperature, pressure and conductivity. At the same time, the electromagnetic flowmeter has no moving parts, no flow-blocking 

parts, no pressure loss, and no It will cause problems such as wear and clogging. Therefore, electromagnetic flowmeters have been widely 

used in sewage treatment, chemical industry, metallurgy, papermaking, food and other industries.


Seeing so many advantages of electromagnetic flowmeter, do you want to know more about its specific selection and quotation? 

CIXIFM winny welcomes your consultation at any time:

Email:sales01@cxflowmeter.com

whatsapp:008618049841995





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