The working principle of electromagnetic flowmeter

The working principle of electromagnetic flowmeter

Electromagnetic flowmeter, abbreviated as EMF, is a new type of flow measurement instrument that developed rapidly with the development of electronic technology in the 1950s and 1960s. The electromagnetic flowmeter is made according to Faraday's law of electromagnetic induction, and is used to measure the volume flow of conductive liquid. Due to its unique advantages, electromagnetic flowmeters have been widely used in the flow measurement of various conductive liquids in the industrial process, such as various acids, alkalis, salts and other corrosive media; electromagnetic flowmeters are used to measure various slurry flow rates. A unique application area.

In structure, the electromagnetic flowmeter consists of two parts: an electromagnetic flow sensor and a converter. The sensor is installed on the industrial process pipeline, and its function is to linearly transform the volumetric flow value of the liquid flowing into the pipeline into an induced potential signal, and send this signal to the converter through the transmission line. The converter is installed not too far away from the sensor. It amplifies the flow signal sent by the sensor and converts it into a standard electrical signal output proportional to the flow signal for display, accumulation and adjustment control.