How does the electromagnetic flowmeter work

Mathematical physical model: The working principle of the electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. When a conductor moves in a magnetic field, an induced electromotive force will be generated at both ends of the conductor perpendicular to the direction of the magnetic field and the direction of motion. The magnitude of the electromotive force is proportional to the velocity of the conductor and the magnetic induction of the magnetic field. Converter circuit structure: On the one hand, the electromagnetic flow converter provides a stable excitation current to the excitation coil of the electromagnetic flow sensor so that B is a constant. At the same time, it amplifies and converts the electromotive force induced by the sensor into a standard current signal or frequency signal, which is convenient for flow control. Display, control and regulation. Figure 2 shows the circuit structure of the converter. The turbine flowmeter is not affected by changes in fluid density, viscosity, temperature, pressure and electric rate, and the linear measurement principle can achieve high-precision measurement;   There is no flow resistance in the measuring tube, the pressure loss is small, and the requirement for straight pipe sections is low;   The nominal diameter is DN6 -DN2000 covers a wide range, and there are many options for lining and electrodes, which can meet the requirements of measuring various conductive fluids; The converter adopts programmable frequency low-frequency rectangular wave excitation, which improves the stability of flow measurement and reduces power loss; The device adopts 16-bit embedded microprocessor, full digital processing, fast calculation speed, strong anti-interference ability, reliable measurement, high precision, and the flow measurement range can reach 1500:1;   ●High-definition backlight LCD display, full Chinese character menu operation , easy to use, easy to operate, easy to learn and understand;   ●With digital communication signal output;   ●With conductivity measurement function, can judge whether the sensor is empty, with self-test and self-diagnosis function;   ●Use SMD devices and surface mount (SMT) Technology, high circuit reliability;   ● can be used in the corresponding explosion-proof occasions.

Over the years, has become very popular as more and more people are trying it out.

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