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E-mail
924157089@qq.com
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Phone
18621658416
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Address
No. 99 Jinhu Road, Jinqiao Town, Pudong New Area, Shanghai
Shanghai Liangyu Automation Equipment Co., Ltd
924157089@qq.com
18621658416
No. 99 Jinhu Road, Jinqiao Town, Pudong New Area, Shanghai
Stainless steel electromagnetic flowmeterWorking Principle:
According to Faraday's principle of electromagnetic induction, a pair of detection electrodes are installed on the tube wall perpendicular to the axis of the measuring tube and the magnetic field lines. When the conductive liquid moves along the axis of the measuring tube, it cuts the magnetic field lines and generates an induced potential. This induced potential is detected by the two detection electrodes, and the value is proportional to the flow rate. Its value is:
E=KBVD
Where:
E - Induced potential;
K - coefficient related to magnetic field distribution and axial length;
B - Magnetic induction intensity;
V - average flow velocity of conductive liquid;
D - electrode spacing; (Measuring the inner diameter of the tube)
The sensor uses the induced potential E as a flow signal, which is transmitted to the converter. After amplification, transformation, filtering, and a series of digital processing, the instantaneous and cumulative flow rates are displayed on a backlit dot matrix LCD. The converter has 4-20mA output, * * output and frequency output, and is equipped with communication interfaces such as RS-485, and supports HART and MODBUS protocols.
Advantages of stainless steel electromagnetic flowmeter products:
1. The structure of the electromagnetic flowmeter sensor is simple, with no movable parts inside the measuring tube and no throttling components that hinder fluid flow;
2. Can measure the flow rate of contaminated media, corrosive media, and suspended liquid-solid two-phase flow;
3. During the measurement process, it is not affected by the temperature, viscosity, density, or conductivity (within a certain range) of the measured medium;
4. The output of an electromagnetic flowmeter is only proportional to the average flow velocity of the measured medium, and is independent of the flow state under symmetric distribution (laminar or turbulent);
5. Electromagnetic flowmeter has no mechanical inertia, sensitive response, can measure instantaneous pulsating flow, and can also measure flow in both positive and negative directions;
6. The range of caliber selection for industrial electromagnetic flow meters is wide.
Electromagnetic flow meters are used for:
Industries such as petroleum, chemical, steel, food, electricity, papermaking, metallurgy, water supply and drainage, petrochemicals, and healthcare.