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[Chemical Knowledge]：Introduction to the Working Principle and Application of Mass Flowmeter

Read： 537 Time：13months ago Source：Transform the World with Simplicity

A mass flow meter is an instrument that measures the mass flow of a gas or liquid. It is different from traditional volumetric flow meters, which calculate flow by measuring the volume entering and exiting a container, while mass flow meters calculate flow by measuring the difference in mass of the fluid flowing through a period of time. Mass flowmeter is widely used in chemical, petroleum, food, pharmaceutical and other industrial fields because of its high measurement accuracy, strong stability and wide application range.

According to the different measurement principles, mass flow meters are mainly divided into four types: conduit mass flow meters, thermal mass flow meters, oscillating mass flow meters and sonic mass flow meters. The conduit mass flowmeter is the most common one, which measures the pressure difference and temperature change induced when the fluid flows in the conduit, so as to reverse the mass flow rate of the fluid. The thermal mass flowmeter calculates the mass flow rate of the fluid by heating the fluid and measuring the temperature change after heating. The working principle of

mass flowmeter can be simply summarized as the interaction between the two physical quantities of "stress" and "strain. Take a conduit mass flow meter as an example. When the fluid passes through the conduit, a pressure difference and temperature change will be induced. The changes in these physical quantities will be mapped on the stress and strain of the material, thereby generating an output signal. By processing these output signals, the mass flow meter finally outputs an accurate mass flow rate value.

mass flow meters have a wide range of applications and can meet the needs of mass flow measurement in different industries. In the petrochemical industry, mass flow meters can be used to measure natural gas, gasoline, diesel and other fluids in pipelines to ensure accurate quantification and measurement in the production process and to achieve a balance between cost and benefit. In the pharmaceutical, food processing and other fields, the mass flow meter can be used to detect the composition and concentration of the fluid to ensure the quality of the product.

Generally speaking, as a high-precision and high-reliability flow measurement device, mass flowmeter has become an indispensable part of modern industrial production process. Through continuous optimization and improvement, mass flow meters will continue to provide more accurate, more stable and more reliable services for flow measurement in all walks of life.

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