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[Chemical Knowledge]：Working principle and application of thermal gas mass flowmeter

Read： 336 Time：20months ago Source：Transform the World with Simplicity

Thermal gas mass flowmeter is a kind of flowmeter based on the principle of heat transfer. It calculates the flow rate by measuring the heat transfer effect of the fluid passing through the sensor. Specifically, the thermal gas mass flow meter includes two sensors. One sensor heats up and the other sensor monitors temperature changes. As the fluid passes over the heated sensor, it will take heat energy away, causing the sensor to drop in temperature. When the fluid passes through the unheated sensor, it will not take away heat energy and the sensor temperature will not change. By comparing the temperature changes of the two sensors, the flow rate can be calculated.

thermal gas mass flow meter has many advantages, such as high precision, fast response, less invasive to the fluid and so on. These characteristics make the thermal gas mass flowmeter widely used in many fields. Here are a few typical application scenarios:

1. Industrial production

thermal gas mass flow meter is widely used in industrial production in the field of gas flow measurement. For example, in oil refining, chemical, pharmaceutical and other industries, precise flow control of air, oxygen, nitrogen and other gases is required to ensure the normal operation of the production process. At this point, the thermal gas mass flow meter has become an ideal choice.

2. Scientific Research

In the field of scientific research, thermal gas mass flow meters have also been widely used. For example, in the fields of aerodynamics, geoscience, biology, etc., there is a need to measure gas flow. At this time, the thermal gas mass flow meter can provide high-precision measurement results, which helps scientists to carry out accurate research results.

3. Environmental monitoring

In the field of environmental monitoring, thermal gas mass flow meters also play an important role. For example, in air pollution monitoring, it is necessary to measure the flow rate, temperature, humidity, and the like of air. At this time, the thermal gas mass flow meter can provide high sensitivity measurement results, which helps the monitoring personnel to accurately judge the environmental conditions.

thermal gas mass flow meter is a very practical flow meter, and its application field is very wide. Although its price is relatively high, it is an irreplaceable choice in measurement occasions that require high precision, fast response and non-invasive fluids. It is hoped that through the introduction of this paper, readers can better understand the working principle and application of thermal gas mass flow meter.

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