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[Chemical Knowledge]：Working Principle and Application of Gas Mass Flowmeter

Read： 167 Time：20months ago Source：Transform the World with Simplicity

A gas mass flow meter is an instrument for measuring the mass flow of gas. Compared with traditional volume flow meters, gas mass flow meters can measure the mass flow of gas more accurately without being affected by gas temperature and pressure changes.

The core measurement principle of this instrument is based on the dynamic pressure method and the thermoelectric effect measurement principle. Specifically, the gas passes through the thermoelectric element inside the instrument, forming a slight thermal gradient in the gas filled with the thermoelectric element, thereby causing the thermoelectric effect. The magnitude of the thermoelectric effect is proportional to the rate of gas flow through the thermoelectric element, so the mass flow of gas can be measured based on the magnitude of the thermoelectric effect.

in the use of gas mass flowmeter, also need to consider some factors, such as gas density, temperature and pressure, these factors will affect the measurement results of gas flow, so it is necessary to calibrate before use.

gas mass flow meters are widely used in various fields, such as medical treatment, environmental monitoring, gas analysis, etc. In medical treatment, it can be used for the control of ventilator, anesthesia machine and other instruments. In terms of environmental monitoring, it can be used for air quality monitoring, exhaust emission testing, etc. In terms of gas analysis, gas mass flow meters can be used in gas analyzers, refrigeration systems and other fields.

gas mass flow meter is a commonly used measuring instrument, which has the advantages of high precision and high reliability, and is widely used in various fields that need to measure gas mass flow. When purchasing and using, pay attention to its working principle and related factors to ensure the accuracy of the measurement results.

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