The working principle of slurry electromagnetic flowmeter

　　Slurry electromagnetic flowmeter using Faraday's law, through special electrodes and signal processing technology, accurate measurement of pulp, slurry and other slurry media flow, including the flow of slurry, induced electromotive force generation, signal conversion, processing and display records.

　　Slurry electromagnetic flowmeter is a special electromagnetic flowmeter dedicated to the measurement of pulp, slurry, mineral slurry and coal water slurry and other slurry media. Its working principle is mainly based on Faraday's law of electromagnetic induction, the following is a detailed explanation of the working principle of the slurry electromagnetic flowmeter:

　　First, the basic working principle

　　When the conductive slurry in the magnetic field for the vertical direction of flow, will cut the magnetic induction lines of force, so that the conductor in the slurry (usually the slurry itself or the conductive particles) in the generation of induced electromotive force. This induced electromotive force is proportional to the flow rate of the slurry, i.e. the larger the flow rate, the larger the induced electromotive force. By measuring the magnitude of this induced electromotive force, the flow rate and flow rate of the slurry can be deduced.

　　Second, the improvement of slurry electromagnetic flowmeter

　　As the conductivity of the slurry is usually poor, and contains solid particles, which will lead to the ordinary electromagnetic flowmeter in the measurement of slurry produce large errors. Therefore, the slurry electromagnetic flowmeter in the ordinary electromagnetic flowmeter on the basis of the following improvements:

　　Special electrode design: Slurry electromagnetic flowmeter uses a special electrode design to adapt to the characteristics of the slurry. These electrodes usually have higher abrasion resistance and corrosion resistance to ensure that they will not be damaged by slurry scouring and corrosion during the measurement process.

　　Signal processing technology: In order to overcome the interference of slurry noise, slurry electromagnetic flowmeter adopts advanced signal processing technology. These technologies include high and low frequency mixed-frequency excitation technology, slurry noise suppression and removal technology, etc., which can effectively improve the ability to measure the slurry and ensure the accuracy and stability of the measurement.

　　Third, the workflow

　　The workflow of the slurry electromagnetic flowmeter usually includes the following steps:

　　Slurry flow: the slurry to be measured flows in the pipe and cuts the magnetic field installed in the pipe.

　　Induction electromotive force generation: conductive particles in the slurry in the magnetic field cutting the magnetic induction lines of force, resulting in induction electromotive force.

　　Signal conversion: The induced electromotive force is captured by the sensor and converted into an electrical signal for transmission.

　　Signal processing: The electrical signal is amplified, filtered and converted into a digital signal proportional to the flow rate of the slurry.

　　Display and recording: the digital signal is sent to the display or recorder to display or record the slurry flow information.

　　In summary, the slurry electromagnetic flowmeter through the use of Faraday's law of electromagnetic induction, combined with special electrode design and advanced signal processing technology, to achieve an accurate measurement of the slurry flow.