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1. What should be noted when installing a quality flow meter?
2. Why do two quality flow meters have inconsistent readings when compared?
3. Types and principles of mass flow meters
4. Can mass flow meters measure gases? Can mass flow meters measure mixed gases?
1. Can mass flow meters measure gases? Mass flow meters are mainly used to measure the mass flow rate of fluids and are usually suitable for liquids.. But in fact, this instrument can also measure gases. Its measurement principle is based on the laws of conservation of mass and thermodynamics. According to the law of conservation of mass, the static mass flow rate of a gas in a constant cross-section remains constant. Therefore, by measuring the mass of gas passing through the cross-section over a certain period of time, the mass flow rate of the gas can be calculated. Based on the laws of thermodynamics, there exists a specific relationship between the volume, pressure, temperature, and density of gases, known as the equation of thermal state. By measuring the volume, temperature, and pressure of a gas, its density can be calculated. As long as the density, velocity, and cross-sectional area of the gas are known, the mass flow rate of the gas can be calculated. In practical applications, when measuring gas with a mass flow meter, parameters such as volume, temperature,
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2. What gases can mass flow meters measure? Gas mass flow meters are mainly used to measure gas mass flow in pipelines and are widely used in various fields such as water companies, automatic control, and the oil and gas industry.
. Generally speaking, thermal mass flow meters can measure almost all single gas media (except acetylene), such as compressed air, hydrogen, natural gas, gas, oxygen, nitrogen, carbon dioxide, and rare gases. 3. Can a mass flowmeter measure mixed gases? Although gas mass flowmeters can measure all single gas media (except acetylene), the situation is different when encountering mixed gases. Because all gas flow meters use air as the measured medium during calibration, the standard conversion coefficient can be obtained for a single medium. However, for mixed gases, the conversion coefficient needs to be calculated based on the percentage of the measured medium composition at the site time. If the composition of the medium changes during measurement, it will increase the measurement error of the flowmeter.