Principle of gas mass flowmeter | What is a gas mass flowmeter?

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1. Principle of Mass Flow Meter

The revised article is as follows: Detailed explanation of the working principle of mass flow meters Mass flow meters are divided into two types: direct and indirect. Among them, direct mass flow meters, such as Coriolis and thermal gas mass flow meters, can directly measure the mass flow rate of fluids, while the indirect type is achieved through the combination of a volume flow meter and a density meter. Xiamen Hongkong Instrument focuses on the introduction of direct mass flow meters. Coriolis mass flow meters, such as the HK-CMF series, utilize advanced Coriolis force sensors to simultaneously measure mass flow rate, density, and temperature. Its working principle is: when the fluid is blocked by the measuring tube, Coriolis force is generated, causing the measuring tube to produce slight distortion, which is converted into an electrical signal through vibration phase difference and displays the mass flow rate. The sensor consists of a housing, a vibration measuring tube, etc., while the electronic unit provides standard signals and communication functions. The thermal gas mass flowmeter is based on the principle of thermal diffusion and uses the constant temperature difference method to measure gases. The sensor consists of two temperature sensors, one measuring the temperature of the medium and the other heating and monitoring the flow rate. The flow rate is proportional to the heat carried away, forming a constant temperature difference, thus achieving direct measurement. Thermal flow meters do not require additional temperature compensation and are suitable for a temperature range of -40 ℃ to 220 ℃ without being affected by pressure, making them a true direct measurement

2. What is a gas mass flowmeter? Gas mass flowmeter is an instrument for measuring gas flow rate, which can adapt to various gases such as corrosive gases. The principle is to measure the gas mass and convert it into volumetric flow rate. Widely used in industries such as petroleum, chemical, food, and beverage. Talking about the balance, it utilizes the energy loss caused by resistance when fluid passes through a flowmeter, accurately measuring without being affected by temperature, pressure, or corrosiveness. High precision, stability, long lifespan, supporting flexible measurement range, easy operation and maintenance. Common applications of gas mass flow meters: industrial process control, used to monitor and control various gas flow rates, such as air, hydrogen, nitrogen, natural gas, etc., applied in petrochemical, refining, chemical, power and other fields. The air compression system monitors and controls the compressed air flow, maintains system stability, saves energy, and ensures normal equipment operation. Environmental monitoring, measuring atmospheric gas flow rates such as oxygen, carbon dioxide, etc., used for atmospheric change, air quality assessment, and environmental pollution control. Laboratory research, control and measurement of experimental gas flow rates, such as fluid dynamics, chemical reactions, etc., to ensure experimental accuracy and data collection. In summary, gas mass flow meters play a crucial role in industries, environments, healthcare, and laboratories, monitoring, controlling, and optimizing gas flow rates to ensure safety, reliability, and efficiency. Different types of gas mass flow meters meet different requirements for accuracy, pressure range, and flow range. <

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