What are the measurement advantages of the split electromagnetic flowmeter? Generally speaking, the split electromagnetic flowmeter belongs to a branch of the electromagnetic flowmeter. The main components are: the measuring tube, the excitation coil, the iron core and the yoke shell.
Analysis of main measurement advantages of split electromagnetic flowmeter:
1. The sensor structure of the electromagnetic flowmeter is simple, there are no moving parts in the measuring tube, nor any throttling parts that hinder the flow of fluid. Therefore, when the fluid passes through the flow meter, it will not cause any additional pressure loss. It is one of the flow meters with low energy consumption in the flow meter.
2. It can measure the flow of dirty medium, corrosive medium and suspended liquid-solid two-phase flow. This is because there are no parts obstructing the flow inside the measuring tube of the instrument, and only the inner lining of the measuring tube and electronic components are in contact with the measured fluid. The material can be selected according to the nature of the measured fluid. For example, using polytrifluoroethylene or polytetrafluoroethylene as the inner lining can measure various acids, alkalis, salts and other corrosive media; using wear-resistant rubber as the inner lining is particularly suitable for measuring wear and tear with solid particles Larger liquid-solid two-phase flow such as mineral pulp and cement slurry and various suspended liquids such as fibrous liquid and pulp.
3. The electromagnetic flowmeter is a volume flow measuring instrument. During the measurement process, it is not affected by the temperature, viscosity, density and conductivity (in a certain range) of the measured medium. Therefore, the electromagnetic flowmeter can be used to measure the flow of other conductive liquids only after being calibrated by water.
4. The output of the electromagnetic flowmeter is only proportional to the average flow velocity of the measured medium, and has nothing to do with the flow state (laminar flow or turbulent flow) under a symmetrical distribution. Therefore, the electromagnetic flowmeter has a very wide range, and its measurement range can reach 100:1, and some even reach an operable flow range of 1000:1.
5. Electromagnetic flowmeter has no mechanical inertia and is sensitive. It can measure instantaneous pulsating flow, and it can also measure flow in both positive and negative directions.
6. The caliber range of industrial electromagnetic flowmeters is very wide, from several millimeters to several meters, and there are real-flow calibration equipment with a caliber up to 3m in China, which lays the foundation for the application and development of electromagnetic flowmeters.