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Advantages of electromagnetic flowmeter compared with other instruments

Electromagnetic flowmeter features Compared with other flow measuring instruments, electromagnetic flowmeters have the following outstanding advantages.
(1) The structure is simple, there are no moving parts and disturbances or throttles that hinder the flow of the measured medium. Therefore, when the fluid passes, it will not cause any additional pressure loss, save energy and reduce consumption; at the same time, it will not cause problems such as wear and blockage, and is especially suitable for measuring slurry with solid particles, liquid-solid two-phase fluid such as sewage. , as well as a variety of viscous slurries and the like.
(2) Only the lining and the electrode are in contact with the medium. By selecting the corrosion-resistant insulating lining and the corrosion-resistant electrode, it can be used for the measurement of various corrosive media.
(3) The electromagnetic flowmeter is a meter that measures the volume flow, and its measurement is not affected by the density, temperature, pressure, viscosity, Reynolds number of the fluid, and the change of the conductivity within a certain range. The electromagnetic flowmeter only needs to be calibrated with water as the experimental medium, and can be used to measure other conductive liquids without additional correction. This is an advantage that other flow meters do not have.
(4) The range ratio is large. For the same caliber sensor, the full-scale flow rate is arbitrarily set within the range of .03 to 15 and s. The measurement range of the electromagnetic flowmeter can cover two speed distribution states of turbulent flow and laminar flow state, which is not comparable to flowmeters such as differential pressure flowmeters, turbines, and vortex meters.
(5) The measurement principle is linear, the measurement accuracy is high, and the complete electrical signal output, no mechanical inertia, reflecting sensitivity, can measure the pulsation flow rate and the rapid cumulative total.
(6) In principle, the average flow velocity of the cross section of the water is measured, and the signal is integrated by the weight distribution, and the requirement for the flow velocity distribution is low. Therefore, the straight pipe sections before and after the sensor are required to be shorter than other flowmeters.
(7) The adaptability is strong, the sensor can work for long-term diving (optional), and can measure the flowing fluid in both forward and reverse directions.

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