The working principle of mass flow meter and the matters that should be avoided during use

Abstract: The information on the working principle of mass flow meter and the matters that should be avoided in the use process is provided by the excellent flow meter and flow meter production and quotation manufacturers. When the mass flow meter measures the flow of the fluid in the rotating tube, a force is generated on the wall of the tube, which was discovered by Coriolis when he studied the water turbine in 1832, referred to as the Coriolis force. Mass flow meters are based on the Coriolis force and have two flats inside the sensor's sensor. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the working principle of mass flowmeters and the details of the articles that should be avoided during use. When the mass flow meter measures the flow of the fluid in the rotating tube, a force is generated on the wall of the tube, which was discovered by Coriolis when he studied the water turbine in 1832, referred to as the Coriolis force. Mass flow meters are based on Coriolis force, in the sensor'>There are two parallel T-shaped vibration tubes inside the sensor, a driving coil is installed in the middle, and a pickup coil is installed at both ends. When the excitation voltage provided by the transmitter is applied to the driving coil, the vibration tube vibrates periodically as a reciprocating cycle mass flowmeter , The fluid medium of the industrial process flows through the vibrating tube of the sensor, which will produce a Coriolis force effect on the vibrating tube, causing the two vibrating tubes to torsional vibration, and the vibration pickup coils installed at both ends of the vibrating tube will generate two sets of signals with different phases. , the difference between these two signals is proportional to the fluid mass flow through the sensor. The computer calculates the mass flow through the vibrating tube. When different media flow through the sensor, the main vibration frequency of the vibrating tube is different, and the density of the medium is calculated accordingly. The platinum resistance installed on the vibrating tube of the sensor can indirectly measure the temperature of the medium. Therefore, we should avoid the following events during the measurement process: 1. The rigidity and stress-free support of the sensor 2. Avoid installing the sensor in the highest position of the pipeline, because the air bubbles will accumulate and stagnate, causing measurement errors in the test system; 3. If too long downstream pipeline (generally not more than 3M) ​​cannot be avoided, an additional flow valve should be installed; 4. The distance from the delivery pump should be at least 4 times greater than the length of the sensor itself (the distance between the two flanges). If the pump Causes unnecessary vibration and must be isolated with a coiled tube or a connecting tube. 5. Additional devices such as regulating valve and inspection window should be installed at least 1X away from the sensor.“L”Far away (L is the distance between the sensor mounting flanges) 6. The bracket cannot be installed on the flange or the shell, and the distance from the flange is generally 20~200mm; the above is the whole content of this article, you are welcome to inquire our flowmeter manufacturer selection, quotation, etc. 'Working principle of mass flow meter and matters to be avoided during use'

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