What is used to measure media with impurities? When selecting a rotor flowmeter, consideration should be given to the medium getting stuck in the float. If it is a conductive liquid, an electromagnetic flowmeter can be used for measurement. The Chengfeng Instrument LDG electromagnetic flowmeter not only has a wide measurement range, but also has very high measurement accuracy. Its * design brings users the advantages of high durability and low maintenance cost. This article briefly describes the electromagnetic flowmeter.
What is the measurement principle of electromagnetic flowmeter?
Electromagnetic flowmeter is a type of flowmeter that applies Faraday's law of electromagnetic induction, used to measure the volumetric flow rate of conductive liquids and slurries in closed pipelines. An electromagnetic flowmeter consists of two main parts: an electromagnetic flow sensor and an electromagnetic flow converter. The working principle of a sensor is based on the law of electromagnetic induction. A conductive liquid medium flows in a non-magnetic measuring tube perpendicular to the magnetic field, generating an induced potential proportional to the flow velocity in the direction perpendicular to the flow direction. That is, a signal voltage is generated on the signal electrode, and the flow rate is calculated by calculating the flow velocity. The working principle of the converter: General instruments and meters cannot detect the signals induced on the electrodes, and can only be completed by the matching converter. After amplifying and converting the flow signal, the converter can display parameters such as flow rate and total amount through corresponding circuit processing, and can output signals such as pulses and analog currents. The flow rate flowing through the flowmeter generates a weak differential signal on the sensor electrode, which is input to the converter for measurement.
So what are the advantages of electromagnetic flow meters?
Electromagnetic flowmeter is used to measure the flow rate of conductive liquids with a conductivity greater than 5 μ s/cm, and is an instrument for measuring the flow rate of conductive media. In addition to measuring the flow rate of general conductive liquids, it can also be used to measure highly corrosive liquids such as strong acids and alkalis, as well as liquids with uniformly suspended liquid-solid phases, such as mud, slurry, pulp, etc.
The electromagnetic flowmeter is specially designed with a backlit wide temperature Chinese LCD display, which is fully functional, practical, intuitive, and easy to operate, reducing the inconvenience caused by the English menu of other electromagnetic flowmeters. And it further ensures measurement accuracy and eliminates the need for a grounding ring at any time, reducing the size of the instrument and the trouble of installation and maintenance.
Electromagnetic flow meters can not only meet on-site display requirements, but also output 4-20mA current signals for recording, regulation, and control. They have been widely used in industrial technology and management departments such as chemical, environmental protection, metallurgy, medicine, papermaking, and water supply and drainage. An electromagnetic flowmeter that uses the principle of electromagnetic induction to measure the flow velocity of a medium fluid. It adds a magnetic field on both sides of the pipeline, and when the measured medium flows through the pipeline, it cuts the magnetic field lines, generating an induced potential on the two detection electrodes, which is proportional to the velocity of the fluid. It can be used to measure the flow rates of various suspended solids, gasification vapors, and viscous substances such as acid, alkali, salt solutions, coal water slurry, slurry, mortar, pulp, resin, rubber emulsion, synthetic fiber slurry, and photosensitive latex.
Electromagnetic flow meters have good sealing performance and can also be used in tap water and groundwater systems. Moreover, the measurement process does not come into contact with fluids, making it suitable for the pharmaceutical, biochemical, and food industries. Moreover, the measurement accuracy of the electromagnetic flowmeter can reach level 0.5.
Electromagnetic flow meters are high-precision, highly reliable, and have a long service life. Chengfeng Instruments is very meticulous in every aspect of product design, material selection, process formulation, production assembly, and factory testing. There is also an advanced set of professional calibration equipment dedicated to the production of electromagnetic flow meters and flow calibration devices, which can effectively ensure the long-term high quality of products in both software and hardware.